Pixel array, driving method thereof, display panel and display device

ABSTRACT

The present invention provides a pixel array comprising a plurality of pixel units, each of which comprises three sub-pixels in different colors, wherein, in each pixel unit, any two adjacent sub-pixels are combined into a pixel block. Compared to the prior art, the width of the sub-pixel in the present invention increases, which reduces the difficulty of the manufacturing process of the pixel array and improves product yield. The present invention further provides a driving method of the pixel array, a display panel including the pixel array, and a display device including the display panel. When driving the above pixel array with the driving method, granular sensation of the display panel including the pixel array can be reduced, and a display effect of a display panel with higher resolution in the same size can be achieved.

CROSS-REFERENCE TO RELATED APPLICATIONS

This patent application is a continuation of U.S. patent applicationSer. No. 14/415,947 filed on Jan. 20, 2015, entitled PIXEL ARRAY,DRIVING METHOD THEREOF, DISPLAY PANEL AND DISPLAY DEVICE, which is a 371of PCT/CN2014/081.205 filed on Jun. 30, 2014, which claims priority toChinese Patent Application No. CN 201310743230.2 filed on Dec. 30, 2013,the content of each of which is hereby incorporated by reference in itsentirety.

FIELD OF THE INVENTION

The present invention relates to the field of display technology, andparticularly to a pixel array, a driving method of the pixel array, adisplay panel including the pixel array, and a display device includingthe display panel.

BACKGROUND OF THE INVENTION

In a current display panel, as a common pixel design, three sub-pixels(including a red sub-pixel, a green sub-pixel, and a blue sub-pixel) orfour sub-pixels (including a red sub-pixel, a green sub-pixel, a bluesub-pixel, and a white sub-pixel) constitute a pixel for display.

If pixel per inch (PPI) of a display panel is small, a user watching adisplay screen would obviously feel a granular sensation (i.e., edges ofdisplayed images are not smooth, but serrated). With users' increasingdemand on viewing experience of the display screen, the PPI of thedisplay panel needs to be increased. An increase in the PPI of thedisplay panel may add difficulty to a manufacturing process of thedisplay panel.

It has become an urgent technical problem how to lower the granularsensation of the display panel to achieve a display effect of a displaypanel with higher resolution in the same size, without adding difficultyto the manufacturing process.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a pixel array, adriving method thereof, a display panel including the pixel array, and adisplay device including the display panel, and when the driving methodis used to drive the pixel array, a granular sensation of the displaypanel can be lowered, and a display effect of a display panel withhigher resolution in the same size can be achieved.

In order to achieve the above object, as an aspect of the presentinvention, there is provided a pixel array, comprising a plurality ofpixel units, each of which comprises three sub-pixels in differentcolors, wherein, in each pixel unit, any two adjacent sub-pixels arecombined into a pixel block.

As another aspect of the present invention, there is provided a drivingmethod of a pixel array, wherein, the pixel array is the above pixelarray provided by the present invention, and the driving methodcomprises steps of:

S1, calculating theoretical brightness values of an image to bedisplayed at respective sub-pixels;

S2, calculating actual brightness values of the respective sub-pixels,wherein, the actual brightness value of each sub-pixel at least includesa sum of a part of the theoretical brightness value of the sub-pixel anda part of the theoretical brightness values of one or more sub-pixels inthe same color as the sub-pixel in the same row; and

S3, inputting signals to the respective sub-pixels, so that therespective sub-pixels reach the actual brightness values calculated instep S2.

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:A(m,n)=a*T(m,n−3)+b*T(m,n)+a*T(m,n+3),

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, 3<n≤Y−3, a>0,b>0, and 2a+b=1.

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:A(m,n)=g*T(m,n−6)+h*T(m,n−3)+i*T(m,n)+h*T(m,n+3)+g*T(m,n+6);

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in rode m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m, n−6) isthe theoretical brightness value of the sub-pixel in row m and columnn−6, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, g>0, h>0, i>0, 2g+2h+i=1, and 6<n≤Y=6.

Preferably, in step S2, the actual brightness value of each sub-pixelincludes the sum of a part of the theoretical brightness value of thesub-pixel and a part of the theoretical brightness values of one or moresub-pixels in the same color as the sub-pixel in the same row minus apart of the theoretical brightness values of one or more sub-pixels inthe same color as the sub-pixel in different rows.

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{4}e_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{e_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {e_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {e_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {e_{4}*{T\left( {{m + 1},{n + 3}} \right)}}} \right\rbrack}};$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−3, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m+1, n−3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−3, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3, 1<m<X, 3<n≤Y−3, a>0, b>0, e_(i)>0, 2a+b=1, and

${\sum\limits_{i = 1}^{4}e_{i}} \leqslant {0.4.}$

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{6}f_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad{\left\lbrack {{f_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {f_{2}*{T\left( {{m - 1},{n + 3}} \right)}} + {f_{3}*{T\left( {{m + 1},{n - 3}} \right)}} + {f_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {f_{5}*{T\left( {{m - 1},n} \right)}} + {f_{6}*{T\left( {{m + 1},n} \right)}}} \right\rbrack;}}}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−3, T(n+3) is the theoretical brightness value of the sub-pixelin row m−1 and column n+3, T(m+1, n−3) is the theoretical brightnessvalue of the sub-pixel row m+1 and column n−3, T(m+1, n+3) is thetheoretical brightness value of the sub-pixel in row m+1 and column n+3,T(m+1, n) is the theoretical brightness value of the sub-pixel in rowm+1 and column n, T(m−1, n) is the theoretical brightness value of thesub-pixel in row m−1 and column n, 1<m<X, 3<n≤Y−3, a>0, b>0, f_(i)>0,2a+b=1, and

${\sum\limits_{i = 1}^{4}f_{i}} \leqslant {0.4.}$

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{6}e_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad{\left\lbrack {{g_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {g_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {g_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {g_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {g_{5}*{T\left( {{m - 2},n} \right)}} + {g_{6}*{T\left( {{m + 2},n} \right)}}} \right\rbrack;}}}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−3, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m+1, n−3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−3, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3, T(m+2, n) is the theoretical brightness value of thesub-pixel in row m+2 and column n, T(m−2, n) is the theoreticalbrightness value of the sub-pixel in row m−2 and column n, 2<m≤X−2,3<n≤Y−3, a>0, b>0, g_(i)>0, 2a+b=1, and

${\sum\limits_{i = 1}^{6}g_{i}} \leqslant {0.4.}$

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{8}H_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{H_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {H_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {H_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {H_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {H_{5}*{T\left( {{m - 2},n} \right)}} + {H_{6}*{T\left( {{m + 2},n} \right)}} + {H_{7}*{T\left( {m,{n - 6}} \right)}} + {H_{8}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}};$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−3, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m+1, n−3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−3, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3, T(m+2, n) is the theoretical brightness value of thesub-pixel in row m+2 and column n, T(m−2, n) is the theoreticalbrightness value of the sub-pixel in row m−2 and column n, T(m, n±6) isthe theoretical brightness value of the sub-pixel in row m and columnn±6, T(m, n−6) is the theoretical brightness value of the sub-pixel inrow m and column n−6, 2<m≤X−2, 6<n≤Y−6, a>0, b>0, H_(i)>0, 2a+b=1, and

${\sum\limits_{i = 1}^{8}H_{i}} \leqslant {0.4.}$

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\overset{6}{\sum\limits_{i = 1}}L_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad{\left\lbrack {{L_{1}*{T\left( {{m - 1},{n - 6}} \right)}} + {L_{2}*{T\left( {{m + 1},{n - 6}} \right)}} + {L_{3}*{T\left( {{m - 1},{n + 6}} \right)}} + {L_{4}*{T\left( {{m + 1},{n + 6}} \right)}} + {L_{5}*{T\left( {{m - 2},n} \right)}} + {L_{6}*{T\left( {{m + 2},n} \right)}}} \right\rbrack;}}}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−6)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−6, T(m−1, n+6) is the theoretical brightness value of thesub-pixel in row m−1 and column n+6, T(m+1, n−6) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−6, T(m+1, n+6)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+6, T(m−2, n) is the theoretical brightness value of thesub-pixel in row m−2 and column n, T(m+2, n) is the theoreticalbrightness value of the sub-pixel in row m+2 and column n, 2<m≤X−2,6<n≤Y−6, a>0, b>0, L_(i)>0, 2a+b=1, and

${\sum\limits_{i = 1}^{6}L_{i}} \leqslant {0.4.}$

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{6}M_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - {\quad{\left\lbrack {{M_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {M_{2}*{T\left( {{m - 1},{n + 3}} \right)}} + {M_{3}*{T\left( {{m + 1},{n - 3}} \right)}} + {M_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {M_{5}*{T\left( {{m - 1},n} \right)}} + {M_{6}*{T\left( {{m + 1},n} \right)}}} \right\rbrack;}}}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m, n−6) isthe theoretical brightness value of the sub-pixel in row m and columnn−6, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, T(m+1, n) is the theoretical brightness value ofthe sub-pixel in row m+1 and column n, T(m−1, n) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n, T(m−1, n+3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n+3, T(m−1, n−3) is the theoretical brightness value of thesub-pixel in row m−1 and column n−3, T(m+1, n+3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n+3, T(m+1, n−3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n−3, g>0, h>0, i>0, M_(i)≥0, 2g+2h+i=1,

${0 < {\sum\limits_{i = 1}^{6}M_{i}} \leqslant 0.4},$6<n≤Y−6 and 1<m<X.

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{10}N_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - {\quad{\left\lbrack {{N_{1}*{T\left( {{m - 1},{n - 6}} \right)}} + {N_{2}*{T\left( {{m - 1},{n - 3}} \right)}} + {N_{3}*{T\left( {{m - 1},n} \right)}} + {N_{4}*{T\left( {{m - 1},{n + 3}} \right)}} + {N_{5}*{T\left( {{m - 1},{n + 6}} \right)}} + {N_{6}*{T\left( {{m + 1},{n - 6}} \right)}} + {N_{7}*{T\left( {{m + 1},{n - 3}} \right)}} + {N_{8}*{T\left( {{m + 1},n} \right)}} + {N_{9}*{T\left( {{m + 1},{n + 3}} \right)}} + {N_{10}*{T\left( {{m + 1},{n + 6}} \right)}}} \right\rbrack;}}}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m n−6) isthe theoretical brightness value of the sub-pixel in row in and columnn−6, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, T(m−1, n−6) is the theoretical brightness value ofthe sub-pixel in row m−1 and column n−6, T(m−1, n−3) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n−3, T(m−1, n)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m−1, n+6) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n+6, T(m+1, n−6)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n−6, T(m+1 n−3) is the theoretical brightness value of thesub-pixel in row m+1 and column n−3, T(m+1, n) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3, T(m+1, n+6) is the theoretical brightness value of thesub-pixel in row m+1 and column n+6, g>0, h>0, i>0, N_(i)≥0, 2g+2h+i=1,

${0 < {\sum\limits_{i = 1}^{10}N_{i}} \leqslant 0.4},$6<n≤Y−6 and 1<m<X.

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{12}o_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - {\quad{\left\lbrack {{o_{1}*{T\left( {{m - 1},{n - 6}} \right)}} + {o_{2}*{T\left( {{m - 1},{n - 3}} \right)}} + {o_{3}*{T\left( {{m - 1},n} \right)}} + {o_{4}*{T\left( {{m - 1},{n + 3}} \right)}} + {o_{5}*{T\left( {{m - 1},{n + 6}} \right)}} + {o_{6}*{T\left( {{m + 1},{n - 6}} \right)}} + {o_{7}*{T\left( {{m + 1},{n - 3}} \right)}} + {o_{8}*{T\left( {{m + 1},n} \right)}} + {o_{9}*{T\left( {{m + 1},{n + 3}} \right)}} + {o_{10}*{T\left( {{m + 1},{n + 6}} \right)}} + {o_{11}*{T\left( {m,{n - 9}} \right)}} + {o_{12}*{T\left( {m,{n + 9}} \right)}}} \right\rbrack;}}}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m, n−6) isthe theoretical brightness value of the sub-pixel in row m and columnn−6, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, T(m, n+9) is the theoretical brightness value ofthe sub-pixel in row m and column n+9, T(m, n−9) is the theoreticalbrightness value of the sub-pixel in row m and column n−9, T(m−1, n−6)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−6, T(m−1, n−3) is the theoretical brightness value of thesub-pixel in row m−1 and column n−3, T(m−1, n) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n, T(m−1, n+3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n+3, T(m−1, n+6) is the theoretical brightness value of thesub-pixel in row m−1 and column n+6, T(m+1, n−6) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−6, T(m+1, n−3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n−3, T(m+1, n) is the theoretical brightness value of thesub-pixel in row m+1 and column n, T(m+1, n+3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n+3, T(m+1, n+6)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+6, g>0, h>0, i>0, o_(i)≤0, 2g+2h+i=1,

${0 < {\sum\limits_{i = 1}^{12}o_{i}} \leqslant 0.4},$9<n≤Y−9 and 1<m<X.

Preferably, the pixel array comprises X rows and Y columns ofsub-pixels, and in step S2, the actual brightness value A(m, n) of thesub-pixel in row m and column n is calculated according to the followingformula:

${A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{12}p_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - {\quad{\left\lbrack {{p_{1}*{T\left( {m,{n - 9}} \right)}} + {p_{2}*{T\left( {{m + 1},{n - 6}} \right)}} + {p_{3}*{T\left( {{m + 2},{n - 3}} \right)}} + {p_{4}*{T\left( {{m + 3},n} \right)}} + {p_{5}*{T\left( {{m + 2},{n + 3}} \right)}} + {p_{6}*{T\left( {{m + 1},{n + 6}} \right)}} + {p_{7}*{T\left( {m,{n + 9}} \right)}} + {p_{8}*{T\left( {{m - 1},{n + 6}} \right)}} + {p_{9}*{T\left( {{m - 2},{n + 3}} \right)}} + {p_{10}*{T\left( {{m - 3},n} \right)}} + {p_{11}*{T\left( {{m - 2},{n - 3}} \right)}} + {p_{12}*{T\left( {{m - 1},{n - 6}} \right)}}} \right\rbrack;}}}$

wherein, T(m, n−6) is the theoretical brightness value of the sub-pixelin row m and column n−6, T(m, n−3) is the theoretical brightness valueof the sub-pixel in row in and column n−3, T(m, n) is the theoreticalbrightness value of the sub-pixel in row m and column n, T(m, n+3) isthe theoretical brightness value of the sub-pixel in row in and columnn+3, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, T(m, n−9) is the theoretical brightness value ofthe sub-pixel in row m and column n−9, T(m+1, n−6) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−6, T(+2, n−3)is the theoretical brightness value of the sub-pixel in row m+2 andcolumn n−3, T(m+3, n) is the theoretical brightness value of thesub-pixel in row m+3 and column n, T(m+2, n+3) is the theoreticalbrightness value of the sub-pixel in row m+2 and column n+3, T(m+1, n+6)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+6, T(m, n+9) is the theoretical brightness value of thesub-pixel in row m and column n+9, T(m−1, n+6) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n+6, T(m−2, n+3)is the theoretical brightness value of the sub-pixel in row m−2 andcolumn n+3, T(m−3, n) is the theoretical brightness value of thesub-pixel in row m−3 and column n, T(m−2, n−3) is the theoreticalbrightness value of the sub-pixel in row m−2 and column n−3, T(m−1, n−6)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−6, g>0, h>0, i>0, p_(i)≥0, 2g+2h+i=1,

${0 < {\sum\limits_{i = 1}^{12}p_{i}} \leqslant 0.4},$9<n≤Y−9 and 3<m<X−3.

As still another aspect of the present invention, there is provided adisplay panel comprising a pixel array, wherein, the pixel array is theabove pixel array provided by the present invention.

As still yet another aspect of the present invention, there is provideda display device comprising a display panel, wherein, the display panelis the above display panel provided by the present invention.

In the pixel array of the present invention, two adjacent sub-pixels inthe same row can be combined into a pixel block. It can be seen that,compared to the prior art, the sub-pixel of the present invention has anincreased width, which reduces the difficulty of the manufacturingprocess of the pixel array and improves product yield. Further, whendriving the above pixel array with the driving method, a granularsensation of the display panel including the pixel array can be reduced,and a display effect of a display panel with higher resolution in thesame size can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, as a part of the specification, are used forproviding a further understanding of the present invention, andexplaining the present invention together with the following specificimplementations, rather than limiting the present invention. In thedrawings:

FIG. 1 is a schematic diagram of a distribution of other sub-pixels thatare in the same color and need to be used when actual brightness of thesub-pixel in row G3 and column S10 is calculated by using a drivingmethod of a pixel array in the first implementation provided by thepresent invention;

FIG. 2 is a schematic diagram of a distribution of other sub-pixels thatare in the same color and need to be used when actual brightness of thesub-pixel in row G3 and column S10 is calculated by using a drivingmethod of a pixel array in the second implementation provided by thepresent invention;

FIG. 3 is an algorithm matrix of calculating actual brightness of thesub-pixel in row G3 and column S10 by using the driving method of apixel array in the second implementation provided by the presentinvention;

FIG. 4 is a schematic diagram of a distribution of other sub-pixels thatare in the same color and need to be used when actual brightness of thesub-pixel in row G3 and column S10 is calculated by using a drivingmethod of a pixel array in the third implementation provided by thepresent invention;

FIG. 5 is an algorithm matrix in calculating actual brightness of thesub-pixel in row G3 and column S10 by using the driving method of apixel array in the third implementation provided by the presentinvention;

FIG. 6 is a schematic diagram of a distribution of other sub-pixels thatare in the same color and need to be used when actual brightness of thesub-pixel in row G3 and column S10 is calculated by using a drivingmethod of a pixel array in the fourth implementation provided by thepresent invention;

FIG. 7 is an algorithm matrix in calculating actual brightness of thesub-pixel in row G3 and column S10 by using the driving method of apixel array in the fourth implementation provided by the presentinvention;

FIG. 8 is a schematic diagram of a distribution of other sub-pixels thatare in the same color and need to be used when actual brightness of thesub-pixel in row G3 and column S10 is calculated by using a drivingmethod of a pixel array in the fifth implementation provided by thepresent invention;

FIG. 9 is an algorithm matrix in calculating actual brightness of thesub-pixel in row G3 and column S10 by using the driving method of apixel array in the fifth implementation provided by the presentinvention;

FIG. 10 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G3 and column S10 is calculated by using a drivingmethod of a pixel array in the sixth implementation provided by thepresent invention;

FIG. 11 is an algorithm matrix in calculating actual brightness of thesub-pixel in row G3 and column S10 by using the driving method of apixel array in the sixth implementation provided by the presentinvention;

FIG. 12 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column. S10 is calculated by using a drivingmethod of a pixel array in the seventh implementation provided by thepresent invention;

FIG. 13 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the eighth implementation provided by thepresent invention;

FIG. 14 is an algorithm matrix in calculating actual brightness of thesub-pixel in row G4 and column S10 by using the driving method of apixel array in the eighth implementation provided by the presentinvention;

FIG. 15 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the ninth implementation provided by thepresent invention;

FIG. 16 is an algorithm matrix in calculating actual brightness of thesub-pixel in row G4 and column S10 is calculated with the driving methodof a pixel array in the ninth implementation provided by the presentinvention;

FIG. 17 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the tenth implementation provided by thepresent invention;

FIG. 18 is an algorithm matrix in calculating actual brightness of thesub-pixel in row G4 and column S10 by using the driving method of apixel array in the tenth implementation provided by the presentinvention;

FIG. 19 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the eleventh implementation provided by thepresent invention; and

FIG. 20 is an algorithm matrix in calculating actual brightness of thesub-pixel in row G4 and column S10 by using the driving method of apixel array in the eleventh implementation provided by the presentinvention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Specific implementations of the present invention will be described indetail below in conjunction with the accompanying drawings. It should beunderstood that, the specific implementations described herein aremerely used for illustrating and explaining the present invention,rather than limiting the present invention.

As shown in FIG. 1, as an aspect of the present invention, there isprovided a pixel array comprising a plurality of pixel units, each ofwhich comprises three sub-pixels in different colors (i.e., a redsub-pixel R, a green sub-pixel G and a blue sub-pixel B), wherein ineach pixel unit, any two adjacent sub-pixels are combined into a pixelblock.

In the prior art, generally, three sub-pixels sequentially arranged inthe same row are combined into a pixel block as a physical pixel unit,and the pixel block may be square or squarish in shape, namely, a widthof each sub-pixel is about one third of a length thereof if eachsub-pixel has the same size. In the present invention, two adjacentsub-pixels in the same row are combined into a pixel block of the samesize, that is, two sub-pixels in the present invention may occupy anarea with the same size as three sub-pixels in the prior art, and if thetwo sub-pixels have the same size, a width of each of the sub-pixels isabout one two of a length of the sub-pixel. It can be seen that,compared to the prior art, the width of the sub-pixel in the presentinvention increases, which reduces the difficulty of the manufacturingprocess of the pixel array and improves product yield.

Two adjacent sub-pixels in the same row can be deemed as constituting asquare or squarish pixel block. It should be understood that, the term“square” used here means that the length and the width of the pixelblock are approximately equal, or, a ratio of the width of the pixelblock to the length thereof is in the range of 0.8 to 1.2. Needless tosay, the pixel block may also have other shape or aspect ratio.

With respect to each sub-pixel, the width thereof may be a half of thelength thereof. Needless to say, the structure of each sub-pixel is notstrictly limited thereto, for example, for each sub-pixel, the widththereof may be two fifths to three fifths of the length thereof, so thatit can be ensured that two adjacent sub-pixels may be combined into theabove square pixel block.

Namely, when the pixel array is used in an array substrate, gate linesand data lines intersect with each other to divide the array substrateinto the plurality of pixel units. A length of each sub-pixel in a gateline direction is a half of that in a data line direction.

In a display panel with a resolution of X*Y, the pixel array may includeX rows and Y columns of sub-pixels, for example, in a display panel witha resolution of 1024*768, the pixel array includes 1024 rows and 768columns of sub-pixels.

As another aspect of the present invention, there is provided a drivingmethod for driving the above pixel array provided by the presentinvention, and the driving method comprises steps of:

S1, calculating theoretical brightness values of an image to bedisplayed at respective sub-pixels;

S2, calculating actual brightness values of the respective sub-pixels,wherein, the actual brightness value of each sub-pixel at least includesa part of the theoretical brightness value of the sub-pixel and a partof the theoretical brightness value(s) of one or more sub-pixels in thesame color as the sub-pixel in the same row; and

S3, inputting signals to the respective sub-pixels, so that therespective sub-pixels reach the actual brightness values calculated instep S2.

In step S2 of the driving method provided by the present invention, theactual brightness output to one sub-pixel at least includes a sum of apart of the theoretical brightness value of the sub-pixel and a part ofthe theoretical brightness value of sub-pixels in the same color as thesub-pixel and adjacent to the sub-pixel in the same row, which isequivalent to that, in display, one sub-pixel shares brightness signalsof other sub-pixels in the same color as said one sub-pixel so that atransition between adjacent sub-pixels becomes smoother. When drivingthe pixel array with the above driving method, a granular sensation ofthe display panel including the pixel array provided by the presentinvention can be reduced, and a display effect of a display panel withhigher resolution in the same size can be achieved.

For example, as shown in FIG. 1, when calculating the actual brightnessvalue of a red sub-pixel R in row G3 and column S10, the theoreticalbrightness value of the red sub-pixel R in row G3 and column S10, thetheoretical brightness value of the red sub-pixel R in row G3 and columnS7 and the theoretical brightness value of the red sub-pixel R in row G3and column S13 may be used for calculation.

As a preferable implementation of the present invention, when the pixelarray includes X rows and Y columns of sub-pixels, in step S2, theactual brightness A(m, n) of the sub-pixel in row m and column n iscalculated according to the following formula (1):A(m,n)=a*T(m,n−3)+b*T(m,n)+a*T(m,n+3)  (1)

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, 3<n≤Y−3, a>0,b>0, and 2a+b=1.

For example, the actual brightness value of the red sub-pixel R in rowG3 and column S10 (i.e., the sub-pixel in row 3 and column 10) in FIG. 1is A(3, 10), and the theoretical brightness value T(3, 10) of thesub-pixel in row 3 and column 10, the theoretical brightness value T(3,7) of the sub-pixel in row 3 and column 7 and the theoretical brightnessvalue T(3, 13) of the sub-pixel in row 3 and column 13 are needed.

Values of a and b are not limited as long as conditions a>0, b>0, and2a+b=1 are satisfied. For example, b may have a value of 0.7, and then amay have a value of 0.15, and in this case, A(3, 10)=0.15*T(3,7)+0.7*T(3, 10)+0.15*T(3, 13).

It can be easily understood that, FIG. 1 illustrates only a part of thepixel army. The pixel array may comprise middle sub-pixels and boundarysub-pixels. In the first implementation as shown in FIG. 1, the middlesub-pixels may refer to sub-pixels from the fourth column (including thefourth column) to the fourth-last column (including the fourth-lastcolumn), and the boundary sub-pixels may refer to the first threecolumns of sub-pixels and the last three columns of sub-pixels. Theactual brightness values of the middle sub-pixels may be directlycalculated by using the above formula (1). In general, Y is far largerthan 3, and therefore, in the whole pixel array, outputs of the firstthree columns of sub-pixels and the last three columns of sub-pixels(boundary sub-pixels) have little effect on the display of the entirepixel array, and in display, signals may be input to the first threecolumns of sub-pixels and the last three columns of sub-pixels based onthe theoretical brightness values.

In order to reduce the granular sensation of the display panel includingthe pixel array and achieve the display effect of a display panel with ahigher resolution in the same size, the actual brightness values of thefirst three columns of sub-pixels may be calculated according to thefollowing formula (2) and the actual brightness values of the last threecolumns of sub-pixels may be calculated according to the followingformula (3) while calculating the actual brightness values of the middlesub-pixels according to the above formula (1):A(m,n)=c*T(m,n)+d*T(m,n+3)  (2)wherein, n≤3,c>0,d>0, and c+d=1;A(m,n)=e*T(m,n−3)+f*T(m,n)  (3)wherein, n>Y−3,e>0,f>0, and e+f=1.

In the implementation of the present invention shown in FIG. 1, whencalculating the actual brightness of one sub-pixel, the theoreticalbrightness values of two sub-pixels in the same color and adjacentthereto in the same row are used. In FIG. 1, the dotted box denoted byreference numeral 1 indicates that the red sub-pixel in row G3 andcolumn S7 and the red sub-pixel in row G3 and column S13 are needed whencalculating the red sub-pixel in row G3 and column S10; the solid boxdenoted by reference numeral 2 indicates that the green sub-pixel in rowG3 and column S8 and the green sub-pixel in row G3 and column S14 areneeded when calculating the green sub-pixel in row G3 and column S11;the dashed box denoted by reference numeral 3 indicates that the bluesub-pixel in row G3 and column S9 and the blue sub-pixel in row G3 andcolumn S15 are needed when calculating the blue sub-pixel in row G3 andcolumn S12.

In order to reduce the granular sensation of the display panel includingthe pixel array provided by the present invention and achieve thedisplay effect of a display panel with a higher resolution in the samesize, preferably, the actual brightness value of each sub-pixel includesthe sum of a part of the theoretical brightness value of the sub-pixeland a part of the theoretical brightness value(s) of one or moresub-pixels in the same color as the sub-pixel in the same row minus apart of the theoretical brightness value(s) of one or more sub-pixels inthe same color as the sub-pixel in different rows. Here, the subtracted“the theoretical brightness value(s) of one or more sub-pixels in thesame color as the sub-pixel in different rows” is equivalent toattenuation to the brightness of one or more sub-pixels in differentrows, which can reduce the granular sensation of the display panelincluding the pixel array.

As shown in FIG. 2, in the second implementation of the presentinvention, when calculating the actual brightness value of the sub-pixelin row G3 and column S10, in addition to the theoretical brightnessvalue of the sub-pixel in row G3 and column S10, the theoreticalbrightness value of the sub-pixel in row G3 and column S7 and thetheoretical brightness value of the sub-pixel in row G3 and column S13,the theoretical brightness value of the sub-pixel in row G2 and columnS7, the theoretical brightness value of the sub-pixel in row G2 andcolumn S13, the theoretical brightness value of the sub-pixel in row G4and column S7, and the theoretical brightness value of the sub-pixel inrow G4 and column S13 are also used.

Preferably, in the second implementation provided by the presentinvention, in step S2, the actual brightness of the sub-pixel in row mand column n is calculated according to the following formula (4):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{4}e_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{e_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {e_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {e_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {e_{4}*{T\left( {{m + 1},{n + 3}} \right)}}} \right\rbrack}} & (4)\end{matrix}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−3, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m+1, n−3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−3, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3, 1<m<X, 3<n≤Y−3, a>0, b>0, e_(i)>0, 2a+b=1, and

${\sum\limits_{i = 1}^{4}e_{i}} \leqslant {0.4.}$

FIG. 3 illustrates value matrices of e_(i). It should be understoodthat, negative values in the matrices shown in FIG. 3 mean that a minusis added before e_(i), and e_(i) times the theoretical brightness valueof a corresponding sub-pixel is subtracted. Taking FIG. 3(1) as anexample, a value of e₁ corresponding to the sub-pixel in row G2 andcolumn S7 is 0.02, a value of e₂ corresponding to the sub-pixel in rowG4 and column S7 is 0.02, a value of e₃ corresponding to the sub-pixelin row G2 and column S13 is 0.02, and a value of e₄ corresponding to thesub-pixel in row G4 and column S13 is 0.02. The ranges of a and b arethe same as those in the first implementation, for example, in thepresent implementation, b may have a value of 0.7, and a may have avalue of 0.15.

Therefore, A(3, 10)=0.15*T(3, 7)+0.78*T(3, 10)+0.15*T(3, 10)−0.02*[T(2,7)+T(4, 7)+T(2, 13)+T(4, 13)].

In the above specific implementation, values of e₁, e₂, e₃, e₄ are thesame, and all equal to 0.02. It should be understood that values of e₁,e₂, e₃, e₄ may be different from one another, as long as

${\sum\limits_{i = 1}^{4}e_{i}} \leqslant 0.4$is satisfied. Although various possible values of e₁, e₂, e₃, e₄ aregiven in FIGS. 3(1) to 3(9), it should be understood by a person skilledin the art that ranges of e₁, e₂, e₃, e₄ are not limited thereto.

When the theoretical brightness values of respective sub-pixels in thepixel array are calculated by using the algorithm provided by thepresent implementation, the middle sub-pixels are sub-pixels from thesecond row (including the second row) to the penultimate row (includingthe penultimate row) and from the fourth column (including the fourthcolumn) to the fourth-last column. (including the fourth-last column).The boundary sub-pixels are the first row of sub-pixels, the last row ofsub-pixels, the first three columns of sub-pixels and the last threecolumns of sub-pixels. Similar to the first implementation of thepresent invention, formula (4) provided by the second implementation ofthe present invention can be used for calculating the actual brightnessvalues of the middle sub-pixels, i.e., sub-pixels other than the firstthree columns of sub-pixels, the last three columns of sub-pixels, thefirst row of sub-pixels and the last row of sub-pixels, in the pixelarray. Similarly, the pixel array has far more than one row and far morethan three columns, and thereby inputting theoretical brightness valuesto the first three columns of sub-pixels, the last three columns ofsub-pixels, the first row of sub-pixels and the last row of sub-pixelshas little influence on the entirety of the display panel including thepixel array.

In order to reduce the overall granular sensation of the display panelincluding the pixel array, preferably, the actual brightness values ofthe boundary sub-pixels may be calculated by using the followingformulae (5) to (12).

When 1<m<X and n≤3 (i.e., sub-pixels from the second row to thepenultimate row in the first three columns), the brightness of eachsub-pixel is calculated by using the theoretical brightness value T(m,n+3) of the sub-pixel in row m and column n+3, the theoreticalbrightness value T(m−1, n+3) of the sub-pixel in row m−1 and column n+3,and the theoretical brightness value T(m+1, n+3) of the sub-pixel in rowm+1 and column n+3 in addition to the theoretical brightness value T(m,n) of the sub-pixel per se. For example, the actual brightness values ofsub-pixels of respective rows in the first three columns may becalculated by using the following formula (5):A(m,n)(c+f ₁ +f ₂)*T(m,n)+d*T(m,n+3)−[f ₁ *T(m−1,n+3)+f ₂*T(m+1,n+3)]  (5)

wherein, c>0, d>0, f₁>0, f₂>0, f₁+f₂≤4, and c+d=1.

Correspondingly, when 1<m<X and n>Y−3 (i.e., sub-pixels from the secondrow to the penultimate row in the last three columns), the actualbrightness values of sub-pixels of respective rows in the last threecolumns are calculated by using the following formula (6):A(m,n)=(c+g ₁ +g ₂)*T(m,n−3)+d*T(m,n−3)−[*T(m−1,n−3)+g ₂*T(m+1,n−3)]  (6)

wherein, c>0, d>0, g₁>0, g₂>0, g_(b)+g₂≤0.4, and c+d=1.

When m=1 and 3<n≤Y−3, the actual brightness values of sub-pixels fromthe fourth column to column (Y−3) in the first row are calculated byusing the following formula (7):A(m,n)=a*T(m,n−3)+(b+h ₁ +h ₂)*T(m,n)+a*T(m,n+3)−[h ₁ *T(m+1,n−3)+h ₂*T(m+1,n+3)]  (7)

wherein, a>0, b>0, h₁>0, h ₂>0, 2a+b=1, and h₁+h₂≤0.4.

When m−1 and n≤3, the actual brightness values of sub-pixels of thefirst three columns in the first row are calculated by using thefollowing formula (8):A(m,n)=(b+j)*T(m,n)+a*T(m,n+3)−j*T(m+1,n+3)  (8)

wherein, a>0, b>0, j>0, a+b=1, and j≤10.4.

When m=1 and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in the first row are calculated by using thefollowing formula (9):A(m,n)=(c+k)*T(m,n)+d*T(m,n−3)−k*T(m+1,n−3)  (9)

wherein, c>0, d>0, k>0, k≤0.4 and c+d=1.

When m=X and 3<n≤Y−3, the actual brightness values of sub-pixels fromthe fourth column to column (Y−3) in row X (i.e., the last row) arecalculated by using the following formula (10):A(m,n)=a*T(m,n−3)+(b+L ₁ +L ₂)*T(m,n)+a*T(m,n+3)−[L ₁ *T(m−1,n−3)+L ₂T(m−1,n+3)]  (10)

wherein, a>0, b>0, L₁>0, L₂>0, 2a+b=1, and L₁+L₂≤0.4.

When m=X and n≤3, the actual brightness values of sub-pixels of thefirst three columns in row X (i.e., the last row) are calculated byusing the following formula (11):A(m,n)=(b+m ₁)*T(m,n)+a*T(m,n+3)−m ₁ *T(m−1,n+3)  (11)

wherein, a>0, b>0, m₁>0, a+b=1, and m₁≤0.4.

When m=X and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in row X (i.e., the last row) are calculated by usingthe following formula (12):A(m,n)=(b+n ₁)*T(m,n)+a*T(m,n−3)−n ₁ *T(m−1,n<3)  (12)

wherein, a>0, b>0, g>0, a+b=1, and n₁≤10.4.

When calculating the actual brightness of the boundary sub-pixels byusing the above formulae (5) to (12), in addition to the theoreticalbrightness value of one sub-pixel per se, the theoretical brightnessvalue(s) of sub-pixel(s) adjacent thereto in the same color as said onesub-pixel in the same row (hereinafter referred to as same-rowsub-pixel(s) for short) and the theoretical brightness value(s) ofsub-pixel(s) in the same color as said one sub-pixel in a different row(hereinafter referred to as different-row sub-pixel(s) for short) arealso needed. Here, a correction factor of said one sub-pixel includestwo parts, i.e., a same-row correction factor and a different-rowcorrection factor. The same-row correction factor should satisfy thecondition that a sum of the same-row correction factor and thecorrection factor(s) of the same-row sub-pixel(s) is equal to 1, and thedifferent-row correction factor should satisfy the condition that thedifferent-row correction factor is equal to a sum of the correctionfactors of the different-row sub-pixels and the different-row correctionfactor is no larger than 0.4.

Taking formula (5) as an example, when calculating the actual brightnessvalue of the sub-pixel in row m and column n, the same-row sub-pixelthat needs to be used is the sub-pixel in row m and column n+3, and thedifferent-row sub-pixels that need to be used are the sub-pixel in rowm−1 and column n+3 and the sub-pixel in row m+1 and column n+3. Thesame-row correction factor of the theoretical brightness value T(m, n)of the sub-pixel in row m and column n is c, the different-rowcorrection factor of the theoretical brightness value T(m, n) of thesub-pixel in row m and column n is f₁+f₂, the correction factor of thesame-row sub-pixel is d, and the correction factors of the different-rowsub-pixels are f₁ and f₂.

The same-row correction factor of the sub-pixel in row m and column nsatisfies: c+d=1, and the different-row correction factor of thesub-pixel in row m and column n satisfies: f₁+f₂≤0.4.

It should be understood that, in different formulas, parametersrepresented by the same letter may have the same value, or may havedifferent values, as long as the conditions of the respective formulaeare satisfied. For example, values of parameters a and b in formula (7)may be the same as or different from values of parameters a and b informula (10), as long as 2a+b=1 is satisfied.

In the third preferable implementation of the present invention shown inFIG. 4, in step S2, the actual brightness value of the sub-pixel in rowm and column n is calculated according to the following formula (13):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{6}f_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad\left\lbrack {{f_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {f_{2}*{T\left( {{m - 1},{n + 3}} \right)}} + {f_{3}*{T\left( {{m + 1},{n - 3}} \right)}} + {f_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {f_{5}*{T\left( {{m - 1},n} \right)}} + {f_{5}*{T\left( {{m + 1},n} \right)}}} \right\rbrack}}} & (13)\end{matrix}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−3, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m+1, n−3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−3, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3, T(m+1, n) is the theoretical brightness value of thesub-pixel in row m+1 and column n, T(m−1, n) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n, 1<m<X,3<n≤Y−3, a>0, b>0, f>0, 2a+b−1, and

${\sum\limits_{i = 1}^{6}f_{i}} \leqslant {0.4.}$

FIG. 5 illustrates value matrices of f₁. It should be understood that,negative values in the matrices shown in FIG. 5 mean that a minus isadded before f_(i), and f_(i) is subtracted. Taking FIG. 5(1) as anexample, a value of f₁ corresponding to the sub-pixel in row G2 andcolumn S7 is 0.02, a value of f₂ corresponding to the sub-pixel in rowG2 and column S13 is 0.02, a value of f₃ corresponding to the sub-pixelin row G4 and column S7 is 0.02, a value of f₄ corresponding to thesub-pixel in row G4 and column S13 is 0.02, a value of f₅ correspondingto the sub-pixel in row G2 and column S10 is 0.02 and a value of f₆corresponding to the sub-pixel in row G4 and column S10 is 0.02. Theranges of a and b are the same as those in the first implementation, forexample, in the present implementation, b may have a value of 0.7, and amay have a value of 0.15.

Like the above two implementations of the present invention, formula(13) provided by the third implementation of the present invention canbe used for calculating the actual brightness values of the sub-pixelsother than the first three columns of sub-pixels, the last three columnsof sub-pixels, the first row of sub-pixels and the last row ofsub-pixels, in the pixel array. Similarly, the pixel array has far morethan one row and far more than three columns, and thereby inputtingtheoretical brightness values to the first three columns of sub-pixels,the last three columns of sub-pixels, the first row of sub-pixels andthe last row of sub-pixels has little influence on the entirety of thedisplay panel including the pixel array.

In order to reduce the overall granular sensation of the display panelincluding the pixel array, preferably, the actual brightness values ofthe first three columns of sub-pixels, the last three columns ofsub-pixels, the first row of sub-pixels and the last row of sub-pixelsmay be calculated by using the following formulae (14) to (21).

When 1<m<X and n≤3 (i.e., sub-pixels from the second row to thepenultimate row in the first three column(s), the brightness of eachsub-pixel is calculated by using the theoretical brightness value T(m,n+3) of the sub-pixel in row m and column n+3, the theoreticalbrightness value T(m−1, n+3) of the sub-pixel in row m−1 and column n+3,and the theoretical brightness value T(m+1, n+3) of the sub-pixel in rowm+1 and column n+3 in addition to the theoretical brightness value T(m,n) of the sub-pixel per se. For example, the actual brightness values ofsub-pixels from the second row to the penultimate row in the first threecolumns may be calculated by using the following formula (14):

$\begin{matrix}{{{A\left( {m,n} \right)} = {{\left( {c + {\sum\limits_{i = 1}^{4}g_{i}}} \right)*{T\left( {m,n} \right)}} + {d*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{g_{1}*{T\left( {{m - 1},{n + 3}} \right)}} + {g_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {g_{3}*{T\left( {{m - 1},n} \right)}} + {g_{4}*{T\left( {{m + 1},n} \right)}}} \right\rbrack}}\mspace{20mu}{{wherein},{c > 0},{d > 0},{g_{i} > 0},{{\sum\limits_{i = 1}^{4}g_{i}} \leqslant 0.4},{{{{and}\mspace{14mu} c} + d} = 1.}}} & (14)\end{matrix}$

When 1<m<X and n>Y−3, the actual brightness values of sub-pixels fromthe second row to the penultimate row in the last three columns may becalculated by using the following formula (15):

$\begin{matrix}{{{A\left( {m,n} \right)} = {{\left( {c + {\sum\limits_{i = 1}^{4}H_{i}}} \right)*{T\left( {m,n} \right)}} + {d*{T\left( {m,{n - 3}} \right)}} - \left\lbrack {{H_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {H_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {H_{3}*{T\left( {{m - 1},n} \right)}} + {H_{4}*{T\left( {{m + 1},n} \right)}}} \right\rbrack}}\mspace{20mu}{{wherein},{c > 0},{d > 0},{h_{i} > 0},{{\sum\limits_{i = 1}^{4}H_{i}} \leqslant 0.4},{{{{and}\mspace{14mu} c} + d} = 1.}}} & (15)\end{matrix}$

When m−1 and 3<n>Y−3, the actual brightness values of sub-pixels fromthe fourth column to the fourth-last column in the first row may becalculated by using the following formula (16):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{3}j_{3}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad{{\left\lbrack {{j_{1}*{T\left( {{m + 1},{n - 3}} \right)}} + {j_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {j_{3}*{T\left( {{m + 1},n} \right)}}} \right\rbrack\mspace{20mu}{wherein}},{a > 0},{b > 0},{j_{i} > 0},{{{2a} + b} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{3}j_{3}}} \leqslant {0.4.}}}}}} & (16)\end{matrix}$

When m=1 and the actual brightness values of sub-pixels of the firstthree columns in the first row may be calculated by using the followingformula (17):A(m,n)=(b+k ₁ +k ₂)*T(m,n)+a*T(m,n+3)−[k ₁ *T(m+1,n+3)−k ₂*T(m+1,n)]  (17)

wherein, a>0, b>0, k₁>0, k₂>0, a+b=1, and k_(b)+k₂≤0.4.

When m=1 and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in the first row may be calculated by using thefollowing formula (18):A(m,n)=(c+L ₁ +L ₂)*T(m,n)+d*T(m,n−3)−[L ₁ *T(m+1,n−3)+L ₂*T(m+1,n)]  (18)

wherein, c>0, d>0, L₁>0, L₂>0, L₁+L₂≤0.4 and c+d=1.

When m=X and 3<n≤Y−3, the actual brightness values of sub-pixels fromthe fourth column to the fourth-last column in the last row may becalculated by using the following formula (19):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{3}M_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad{\left\lbrack {{M_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {M_{2}*{T\left( {{m - 1},{n + 3}} \right)}} + {M_{3}*{T\left( {{m - 1},n} \right)}}} \right\rbrack\mspace{20mu}{{wherein},{a > 0},{b > 0},{m_{i} > 0},{{{2a} + b} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{3}M_{i}}} \leq {0.4.}}}}}}} & (19)\end{matrix}$

When m=X and n≤3, the actual brightness values of sub-pixels of thefirst three columns in the last row may be calculated by using thefollowing formula (20):A(m,n)=(b+N ₁ N ₂)*T(m,n)+a*T(m,n+3)−[N ₁ *T(m−1,n+3)+N ₂*T(m−1,n)]  (20)

wherein, a>0, b>0, N₁>0, N₂>0, a+b=1, and N₁+N₂≤0.4.

When m=X and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in the last row may be calculated by using thefollowing formula (21):A(m,n)=(b+o ₁ +o ₂)*T(m,n)+a*T(m,n−3)−[o ₁ *T(m−1,n−3)+o ₂*T(m−1,n)]  (21)

wherein, a>0, b>0, o₁>0, o₂>0, a+b=1, and o₁+o₂≤0.4.

Like the second implementation, when calculating the actual brightnessof the boundary sub-pixels by using the above formulae (14) to (21), inaddition to the theoretical brightness value of one sub-pixel per se,the theoretical brightness value(s) of sub-pixel(s) adjacent thereto inthe same color as said one sub-pixel in the same row (hereinafterreferred to as same-row sub-pixel(s) for short) and the theoreticalbrightness value(s) of sub-pixel(s) in the same color as said onesub-pixel in a different row (hereinafter referred to as different-rowsub-pixel(s) for short) are also needed. Here, a correction factor ofsaid one sub-pixel includes two parts, i.e., a same-row correctionfactor and a different-row correction factor. The same-row correctionfactor should satisfy the condition that a sum of the same-rowcorrection factor and the correction factor(s) of the same-rowsub-pixel(s) is equal to one, and the different-row correction factorshould satisfy the condition that the different-row correction factor isequal to a sum of the correction factors of the different-row sub-pixelsand the different-row correction factor is no larger than 0.4.

Taking formula (14) as an example, when calculating the actualbrightness value of the sub-pixel in row m and column n, the same-rowsub-pixel that needs to be used is the sub-pixel in row m and columnn+3, and the different-row sub-pixels that need to be used are thesub-pixel in row m−1 and column n+3, the sub-pixel in row m−1 and columnn, the sub-pixel in row m+1 and column n+3 and the sub-pixel in row m+1and column n. The same-row correction factor of the theoreticalbrightness value T(m, n) of the sub-pixel in row m and column n is c,the different-row correction factor of the theoretical brightness valueT(m, n) of the sub-pixel in row m and column n is

${\sum\limits_{i = 1}^{4}g_{i}},$the correction factor of the same-row sub-pixel is d, and the correctionfactors of the different-row sub-pixels are g₁ to g₄. The same-rowcorrection factor of the sub-pixel in row m and column n satisfies:c+d=1, and the different-row correction factor of the sub-pixel in row mand column n satisfies:

${\sum\limits_{i = 1}^{4}g_{i}} \leq {0.4.}$

In the fourth preferable implementation of the present invention shownin FIG. 6, the pixel array comprises X rows and Y columns of sub-pixels,and in step S2, the actual brightness value of the sub-pixel in row mand column n is calculated according to the following formula (22):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{6}g_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad\left\lbrack {{g_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {g_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {g_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {g_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {g_{5}*{T\left( {{m - 2},n} \right)}} + {g_{6}*{T\left( {{m + 2},n} \right)}}} \right\rbrack}}} & (22)\end{matrix}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−3, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m+1, n−3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−3, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3, T(m+2, n) is the theoretical brightness value of thesub-pixel in row m+2 and column n, T(m−2, n) is the theoreticalbrightness value of the sub-pixel in row m−2 and column n, 2<m≤X−2,3<n≤Y−3, a>0, b>0, g_(i)>0, 2a+b=1, and

${\sum\limits_{i = 1}^{6}g_{i}} \leqslant {0.4.}$

FIG. 7 illustrates value matrices of g_(i). It should be understoodthat, negative values in the matrices shown in FIG. 7 mean that a minusis added before g_(i), and g_(i) is subtracted. Taking FIG. 7(1) as anexample, a value of g_(i) corresponding to the sub-pixel in row G2 andcolumn S7 is 0.02, a value of g₂ corresponding to the sub-pixel in rowG4 and column S7 is 0.02, a value of g₃ corresponding to the sub-pixelin row G2 and column S13 is 0.02, a value of g₄ corresponding to thesub-pixel in row G4 and column S13 is 0.02, a value of g₅ correspondingto the sub-pixel in row G1 and column S10 is 0.02 and a value of g₆corresponding to the sub-pixel in row G5 and column S10 is 0.02. Theranges of a and b are the same as those in the first implementation, forexample, in the present implementation, b may have a value of 0.7, and amay have a value of 0.15.

Similar to the above three implementations of the present invention,formula (22) provided by the fourth implementation of the presentinvention can be used for calculating the actual brightness values ofthe sub-pixels other than the first three columns of sub-pixels, thelast three columns of sub-pixels, the first two rows of sub-pixels andthe last two rows of sub-pixels, in the pixel array. Similarly, thepixel array has far more than two rows and far more than three columns,and thereby inputting theoretical brightness values to the first threecolumns of sub-pixels, the last three columns of sub-pixels, the firsttwo rows of sub-pixels and the last two rows of sub-pixels has littleinfluence on the entirety of the display panel including the pixelarray.

In order to reduce the overall granular sensation of the display panelincluding the pixel array, preferably, the actual brightness values ofthe first three columns of sub-pixels, the last three columns ofsub-pixels, the first two rows of sub-pixels and the last two rows ofsub-pixels may be calculated by using the following formulae (23) to(36).

When 2<m≤X−2 and n≤3, the actual brightness values of sub-pixels fromthe third row to the third-last row in the first three columns may becalculated by using the following formula (23):

$\begin{matrix}{{{A\left( {m,n} \right)} = {{\left( {c + {\sum\limits_{i = 1}^{4}H_{i}}} \right)*{T\left( {m,n} \right)}} + {d*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{H_{1}*{T\left( {{m - 1},{n + 3}} \right)}} + {H_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {H_{3}*{T\left( {{m - 2},n} \right)}} + {H_{4}*{T\left( {{m + 2},n} \right)}}} \right\rbrack}}{{wherein},{c > 0},{d > 0},{g > 0},{H_{i} > 0},{{c + d} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{4}H_{i}}} \leqslant {0.4.}}}}} & (23)\end{matrix}$

When 2<m≤X−2 and n>Y−3, the actual brightness values of sub-pixels fromthe third row to the third-last row in the last three columns may becalculated by using the following formula (24):

$\begin{matrix}{{{A\left( {m,n} \right)} = {{\left( {c + {\sum\limits_{i = 1}^{4}j_{i}}} \right)*{T\left( {m,n} \right)}} + {d*{T\left( {m,{n - 3}} \right)}} - \left\lbrack {{j_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {j_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {j_{3}*{T\left( {{m - 2},n} \right)}} + {j_{4}*{T\left( {{m + 2},n} \right)}}} \right\rbrack}}\mspace{20mu}{{wherein},{c > 0},{d > 0},{j_{i} > 0},{{\sum\limits_{i = 1}^{4}j_{i}} \leqslant 0.4},{{{{and}\mspace{14mu} c} + d} = 1.}}} & (24)\end{matrix}$

When m=2 and 3<n≤Y−3, the actual brightness values of sub-pixels fromthe fourth column to the fourth-last column in the second row may becalculated by using the following formula (25):

$\begin{matrix}{{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{5}k_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{k_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {k_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {k_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {k_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {k_{5}*{T\left( {{m + 2},n} \right)}}} \right\rbrack}}\mspace{20mu}{{wherein},{a > 0},{b > 0},{k_{i} > 0},{{{2a} + b} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{5}k_{i}}} \leqslant {0.4.}}}} & (25)\end{matrix}$

When m=1 and 3<n≤Y−3, the actual brightness values of sub-pixels fromthe fourth column to the fourth-last column in the first row may becalculated by using the following formula (26):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{3}L_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad{{\left\lbrack {{L_{1}*{T\left( {{m + 1},{n - 3}} \right)}} + {L_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {L_{3}*{T\left( {{m + 2},n} \right)}}} \right\rbrack\mspace{20mu}{wherein}},{a > 0},{b > 0},{L_{i} > 0},{{{2a} + b} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{3}L_{i}}} \leqslant {0.4.}}}}}} & (26)\end{matrix}$

When m=2 and n≤3, the actual brightness values of sub-pixels of thefirst three columns in the second row may be calculated by using thefollowing formula (27):

$\begin{matrix}{{A\left( {m,n} \right)} = {{\left( {b + {\sum\limits_{i = 1}^{3}M_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad\left\lbrack {{M_{1}*{T\left( {{m - 1},{n + 3}} \right)}} + {M_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {M_{3}*{T\left( {{m + 2},n} \right)}}} \right\rbrack}}} & (27) \\{\mspace{79mu}{{wherein},\mspace{79mu}{a > 0},{b > 0},{M_{i} > 0},{{a + b} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{3}M_{i}}} \leqslant {0.4.}}}} & \;\end{matrix}$

When m−1 and n≤3, the actual brightness values of sub-pixels of thefirst three columns in the first row may be calculated by using thefollowing formula (28):A(m,n)=(b+N ₁ +N ₂)*T(m,n)+a*T(m,n+3)−[N ₁ *T(m+1,n+3)+N ₂*T(m+2,n)]  (28)

wherein, a>0, b>0, N₁>0, N₂>0, a+b=1, and N₁+N₂≤0.4.

When m=2 and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in the second row may be calculated by using thefollowing formula (29):

$\begin{matrix}{{A\left( {m,n} \right)} = {{c*{T\left( {m,{n - 3}} \right)}} + {\left( {d + {\sum\limits_{i = 1}^{3}o_{i}}} \right)*{T\left( {m,n} \right)}} - {\quad\left\lbrack {{o_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {o_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {o_{3}*{T\left( {{m + 2},n} \right)}}} \right\rbrack}}} & (29) \\{\mspace{79mu}{{wherein},\mspace{79mu}{c > 0},{d > 0},{o_{i} > 0},{{\sum\limits_{i = 1}^{3}o_{i}} \leq 0.4},{{{{and}\mspace{14mu} c} + d} = 1.}}} & \;\end{matrix}$

When m=1 and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in the first row may be calculated by using thefollowing formula (30):A(m,n)c*T(m,n−3)+(d+o ₁ +o ₂)*T(m,n)−[o ₁ *T(m+1,n−3)−o ₂*T(m+2,n)]  (30)

wherein, c>0, d>0, o₁>0, o₂>0, o₁+o₂≤0.4 and c+d=1.

When m=X−1 and 3<n≤Y−3, the actual brightness values of sub-pixels fromthe fourth column to the fourth-last column in the second-last row maybe calculated by using the following formula (31):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b\; + {\sum\limits_{i = 1}^{5}p_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{p_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {p_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {p_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {p_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {p_{5}*{T\left( {{m - 2},n} \right)}}} \right\rbrack}} & (31) \\{\mspace{79mu}{{wherein},\mspace{79mu}{a > 0},{b > 0},{p_{i} > 0},{{{2a} + b} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{5}p_{i}}} \leq {0.4.}}}} & \;\end{matrix}$

When m=X and 3<n≤Y−3, the actual brightness values of sub-pixels fromthe fourth column to the fourth-last column in the last row may becalculated by using the following formula (32):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{3}q_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad\left\lbrack {{q_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {q_{2}*{T\left( {{m - 1},{n + 3}} \right)}} + {q_{3}*{T\left( {{m - 2},n} \right)}}} \right\rbrack}}} & (32) \\{\mspace{79mu}{{wherein},\mspace{79mu}{a > 0},{b > 0},{q_{i} > 0},{{{2a} + b} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{3}q_{i}}} \leq {0.4.}}}} & \;\end{matrix}$

When m=X−1 and n≤3, the actual brightness values of sub-pixels of thefirst three columns in the second-last row may be calculated by usingthe following formula (33):

$\begin{matrix}{{A\left( {m,n} \right)} = {{\left( {b + {\sum\limits_{i = 1}^{3}r_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad\left\lbrack {{r_{1}*{T\left( {{m - 1},{n + 3}} \right)}} + {r_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {r_{3}*{T\left( {{m - 2},n} \right)}}} \right\rbrack}}} & (33) \\{\mspace{79mu}{{wherein},}} & \; \\{\mspace{79mu}{{a > 0},{b > 0},{r_{i} > 0},{{a + b} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{3}r_{i}}} \leq {0.4.}}}} & \;\end{matrix}$

When m=X and n≤3, the actual brightness values of sub-pixels of thefirst three columns in the last row may be calculated by using thefollowing formula (34):A(m,n)(c+s ₁ +s ₂)*T(m,n)+d*T(m,n+3)−[s ₁ *T(m−1,n+3)+s ₃*T(m−2,n)]  (34)

wherein, c>0, d>0, s₁>0, s₂>0, c+d=1, and s₁+s₂≤0.4.

When m=X−1 and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in the second-last row may be calculated by using thefollowing formula (35):

$\begin{matrix}{{A\left( {m,n} \right)} = {{c*{T\left( {m,{n - 3}} \right)}} + {\left( {d + {\sum\limits_{i = 1}^{3}t_{i}}} \right)*{T\left( {m,n} \right)}} - {\quad\left\lbrack {{t_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {t_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {t_{3}*{T\left( {{m - 2},n} \right)}}} \right\rbrack}}} & (35) \\{\mspace{79mu}{{wherein},\mspace{79mu}{c > 0},{d > 0},{t_{i} > 0},{{c + d} = 1},{{{and}\mspace{14mu}{\sum\limits_{i = 1}^{3}t_{i}}} \leq {0.4.}}}} & \;\end{matrix}$

When m=X and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in the last row may be calculated by using thefollowing formula (36):A(m,n)=c*T(m,n−3)+(d+u ₁ +u ₂)*T(m,n)−[u ₁ *T(m−1,n−3)+u ₂*T(m−2,n)]  (36)

wherein, c>0, d>0, u₁>0, u₂>0, c+d=1 and u₁+u₂≤0.4.

Like the second and the third implementations, when calculating theactual brightness of the boundary sub-pixels, in addition to thetheoretical brightness value of one sub-pixel per se, the theoreticalbrightness value(s) of sub-pixel(s) adjacent thereto and in the samecolor as said one sub-pixel in the same row (hereinafter referred to assame-row sub-pixel(s) for short) and the theoretical brightness value(s)of sub-pixel(s) in the same color as said one sub-pixel in a differentrow (hereinafter referred to as different-row sub-pixel(s) for short)are also needed. The theoretical brightness values of the abovesub-pixels involving in the calculation should be multiplied bycorrection factors. Here, the correction factor of the one sub-pixelincludes two parts, i.e., a same-row correction factor and adifferent-row correction factor. The same-row correction factor shouldsatisfy the condition that a sum of the same-row correction factor andthe correction factor(s) of the same-row sub-pixel(s) is equal to one,and the different-row correction factor should satisfy the conditionthat the different-row correction factor is equal to a sum of thecorrection factors of the different-row sub-pixels and the different-rowcorrection factor is no larger than 0.4.

Taking formula (23) as an example, when calculating the actualbrightness value of the sub-pixel in row m and column n, the same-rowsub-pixel that needs to be used is the sub-pixel in row m and columnn+3, and the different-row sub-pixels that need to be used are thesub-pixel in row m−1 and column n+3, the sub-pixel in row m+1 and columnn+3, the sub-pixel in row m−2 and column n and the sub-pixel in row m+2and column n. The same-row correction factor of the theoreticalbrightness value T(m, n) of the sub-pixel in row m and column n is c,the different-row correction factor of the theoretical brightness valueT(m, n) of the sub-pixel in row m and column n is

${\sum\limits_{i = 1}^{4}H_{i}},$the correction factor of the same-row sub-pixel is d, and the correctionfactors of the different-row sub-pixels are H₁ to H₄. The same-rowcorrection factor of the sub-pixel in row m and column n satisfies:c+d=1, and the different-row correction factor of the sub-pixel in row mand column n satisfies:

${\sum\limits_{i = 1}^{4}H_{i}} \leq {0.4.}$

In the fifth preferable implementation of the present invention shown inFIG. 8, the pixel array comprises X rows and Y columns of sub-pixels,and in step S2, the actual brightness value of the sub-pixel in row mand column n is calculated according to the following formula (37):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{8}H_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - {\quad\left\lbrack {H_{1}*{T\left( {{m - 1},{n - 3 + {H_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {H_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {H_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {H_{5}*{T\left( {{m - 2},n} \right)}} + {H_{6}*{T\left( {{m + 2},n} \right)}} + {H_{7}*{T\left( {m,{n - 6}} \right)}} + {H_{8}*{T\left( {m,{n + 6}} \right)}}}} \right\rbrack}} \right.}}} & (37)\end{matrix}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−3, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m+1, n−3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−3, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3, T(m+2, n) is the theoretical brightness value of thesub-pixel in row m+2 and column n, T(m−2, n) is the theoreticalbrightness value of the sub-pixel in row m−2 and column n, T(m, n+6) isthe theoretical brightness value of the sub-pixel in row m and columnn+6, T(m, n−6) is the theoretical brightness value of the sub-pixel inrow m and column n−6, 2<m≤X−2, 6<n≤Y−6, a>0, b>0, H_(i)>0, 2a+b=1, and

${\sum\limits_{i = 1}^{8}H_{i}} \leqslant {0.4.}$

FIG. 9 illustrates value matrices of H_(i). It should be understoodthat, negative values in the matrices shown in FIG. 9 mean that a minusis added before H_(i), and H_(i) is subtracted. Taking FIG. 9(1) as anexample, a value of H₁ corresponding to the sub-pixel in row G2 andcolumn S7 is 0.02, a value of H₂ corresponding to the sub-pixel in rowG4 and column S7 is 0.02, a value of H₃ corresponding to the sub-pixelin row G2 and column S13 is 0.02, a value of H₄ corresponding to thesub-pixel in row G4 and column S13 is 0.02, a value of H₅ correspondingto the sub-pixel in row G1 and column S10 is 0.02, a value of H₆corresponding to the sub-pixel in row G5 and column S10 is 0.02, a valueof H₇ corresponding to the sub-pixel in row G3 and column S4 is 0.02,and a value of H₈ corresponding to the sub-pixel in row G3 and columnS16 is 0.02. The ranges of a and b are the same as those in the firstimplementation, for example, in the present implementation, b may have avalue of 0.7, and a may have a value of 0.15.

Formula (37) provided by the fifth implementation of the presentinvention can be used for calculating the actual brightness values ofthe sub-pixels other than the first six columns of sub-pixels, the lastsix columns of sub-pixels, the first two rows of sub-pixels and the lasttwo rows of sub-pixels, in the pixel array. Similarly, the pixel arrayhas far more than two rows and far more than six columns, and therebyinputting theoretical brightness values to the first six columns ofsub-pixels, the last six columns of sub-pixels, the first two rows ofsub-pixels and the last two rows of sub-pixels has little influence onthe entirety of the display panel including the pixel array.

In order to reduce the overall granular sensation of the display panelincluding the pixel array, preferably, the actual brightness values ofthe first six columns of sub-pixels, the last six columns of sub-pixels,the first two rows of sub-pixels and the last two rows of sub-pixels maybe calculated by using the following method.

When 2<m≤X−2 and n≤3, the actual brightness values of sub-pixels fromthe third row to the third-last row in the first three columns may becalculated by using the following formula (38):

$\begin{matrix}{{A\left( {m,n} \right)} = {{\left( {c + {\sum\limits_{i = 1}^{5}j_{i}}} \right)*{T\left( {m,n} \right)}} + {d*{T\left( {m,{n + 3}} \right)}} - {\quad\left\lbrack {{j_{1}*{T\left( {{m - 1},{n + 3}} \right)}} + {j_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {j_{3}*{T\left( {{m - 2},n} \right)}} + {j_{4}*{T\left( {{m + 2},n} \right)}} + {j_{5}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}}} & (38) \\{\mspace{79mu}{{wherein},\mspace{79mu}{c > 0},{d > 0},{j_{1} > 0},{{c + d} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{5}j_{i}}} \leqslant {0.4.}}}}} & \;\end{matrix}$

When 2<m≤X−2 and 3<n≤6, the actual brightness values of sub-pixels fromthe third row to the third-last row and from the third column to thesixth column may be calculated by using the following formula (39):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{7}k_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{k_{1}*{T\left( {{m - 1},{n - 3}} \right)}k_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {k_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {k_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {k_{5}*{T\left( {{m - 2},n} \right)}} + {k_{6}*{T\left( {{m + 2},n} \right)}} + {k_{7}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}} & (39) \\{\mspace{79mu}{{wherein},\mspace{79mu}{a > 0},{b > 0},{k_{i} > 0},{{{2a} + b} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{7}k_{i}}} \leqslant {0.4.}}}}} & \;\end{matrix}$

When 2<m≤X−2 and Y−6<n≤Y−3, the actual brightness values of sub-pixelsfrom the third row to the third-last row and from the sixth-last columnto the third-last column may be calculated by using the followingformula (40):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{7}L_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{L_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {L_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {L_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {L_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {L_{5}*{T\left( {{m - 2},n} \right)}} + {L_{6}*{T\left( {{m + 2},n} \right)}} + {L_{7}*{T\left( {m,{n - 6}} \right)}}} \right\rbrack}} & (40) \\{\mspace{79mu}{{wherein},\mspace{79mu}{a > 0},{b > 0},{L_{i} > 0},{{{2a} + b} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{7}L_{i}}} \leqslant {0.4.}}}}} & \;\end{matrix}$

When 2<m≤X−2 and n>Y−3, the actual brightness values of sub-pixels fromthe third row to the third-last row in the last three columns may becalculated by using the following formula (41):

$\begin{matrix}{{A\left( {m,n} \right)} = {{c*{T\left( {m,{n - 3}} \right)}\left( {d + {\sum\limits_{i = 1}^{5}M_{i}}} \right)*{T\left( {m,n} \right)}} - {\quad\left\lbrack {{M_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {M_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {M_{3}*{T\left( {{m - 2},n} \right)}} + {M_{4}*{T\left( {{m + 2},n} \right)}} + {M_{5}*{T\left( {m,{n - 6}} \right)}}} \right\rbrack}}} & (41) \\{\mspace{79mu}{{wherein},}} & \; \\{\mspace{79mu}{{c > 0},{d > 0},{M_{i} > 0},{{c + d} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{5}M_{i}}} \leqslant {0.4.}}}}} & \;\end{matrix}$

When m=1 and 6<n≤Y−6, the actual brightness values of sub-pixels fromthe seventh column to the seventh-last column in the first row may becalculated by using the following formula (42):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{5}N_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{N_{1}*{T\left( {{m + 1},{n - 3}} \right)}} + {N_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {N_{3}*{T\left( {{m + 2},n} \right)}} + {N_{4}*{T\left( {m,{n - 6}} \right)}} + {N_{5}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}} & (42) \\{\mspace{79mu}{{wherein},}} & \; \\{\mspace{79mu}{{a > 0},{b > 0},{N_{i} > 0},{{{2a} + b} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{5}N_{i}}} \leqslant {0.4.}}}}} & \;\end{matrix}$

When m=1 and 3<n≤6, the actual brightness values of sub-pixels from thefourth column to the sixth column in the first row may be calculated byusing the following formula (43):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{4}\; o_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{o_{1}*{T\left( {{m + 1},{n - 3}} \right)}} + {o_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {o_{3}*{T\left( {{m + 2},n} \right)}} + {o_{4}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}}\mspace{76mu}{{wherein},\mspace{76mu}{a > 0},{b > 0},{o_{i} > 0},{{{2a} + b} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{4}o_{i}}} \leqslant {0.4.}}}}}\;} & (43)\end{matrix}$

When m=1 and n≤3, the actual brightness values of sub-pixels of thefirst three columns in the first row may be calculated by using thefollowing formula (44):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{\left( {c + {\sum\limits_{i = 1}^{3}p_{i}}} \right)*{T\left( {m,n} \right)}} + {d*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{p_{1}*{T\left( {{m + 1},{n + 3}} \right)}} + {p_{2}*{T\left( {{m + 2},n} \right)}} + {p_{3}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}}\mspace{76mu}{{wherein},\mspace{76mu}{c > 0},{d > 0},{p_{i} > 0},{{c + d} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{3}p_{i}}} \leqslant {0.4.}}}}}\;} & (44)\end{matrix}$

When m=1 and Y−6<n≤Y−3, the actual brightness values of sub-pixels fromthe sixth-last column to the fourth-last column in the first row may becalculated by using the following formula (45):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{4}q_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{q_{1}*{T\left( {{m + 1},{n - 3}} \right)}} + {q_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {q_{3}*{T\left( {{m + 2},n} \right)}} + {q_{4}*{T\left( {m,{n - 6}} \right)}}} \right\rbrack}}\mspace{76mu}{{wherein},\mspace{76mu}{a > 0},{b > 0},{q_{i} > 0},{{{2a} + b} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{4}q_{i}}} \leqslant {0.4.}}}}}\;} & (45)\end{matrix}$

When m=1 and n>Y−3, the actual brightness values of sub-pixels of thelast three columns in the first row may be calculated by using thefollowing formula (46):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{c*{T\left( {m,{n - 3}} \right)}} + {\left( {d + {\sum\limits_{i = 1}^{3}r_{i}}} \right)*{T\left( {m,n} \right)}} - \left\lbrack {{r_{1}*{T\left( {{m + 1},{n - 3}} \right)}} + {r_{2}*{T\left( {{m + 2},n} \right)}} + {r_{3}*{T\left( {m,{n - 6}} \right)}}} \right\rbrack}}\mspace{76mu}{{wherein},\mspace{76mu}{c > 0},{d > 0},{r_{i} > 0},{{c + d} = {{1\mspace{14mu}{a{nd}}\mspace{14mu}{\sum\limits_{i = 1}^{3}r_{i}}} \leqslant {0.4.}}}}}\;} & (46)\end{matrix}$

When m=2 and 6<n≤Y−6, the actual brightness values of sub-pixels fromthe seventh column to the seventh-last column in the second row may becalculated by using the following formula (47):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{7}s_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{s_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {s_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {s_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {s_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {s_{5}*{T\left( {{m + 2},n} \right)}} + {s_{6}*{T\left( {m,{n - 6}} \right)}} + {s_{7}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}}\mspace{76mu}{{wherein},\mspace{76mu}{a > 0},{b > 0},{s_{i} > 0},{{{2a} + b} = {{1\mspace{14mu}{a{nd}}\mspace{14mu}{\sum\limits_{i = 1}^{7}s_{i}}} \leqslant {0.4.}}}}}\;} & (47)\end{matrix}$

When m=2 and 3<n≤6, the actual brightness values of sub-pixels from thefourth column to the sixth column in the second row may be calculated byusing the following formula (48):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{6}t_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{t_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {t_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {t_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {t_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {t_{5}*{T\left( {{m + 2},n} \right)}} + {t_{6}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}}\mspace{79mu}{{wherein},\mspace{76mu}{a > 0},{b > 0},{t_{i} > 0},{{{2a} + b} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{6}t_{i}}} \leqslant {0.4.}}}}}\;} & (48)\end{matrix}$

When m=2 and n≤3, the actual brightness values of sub-pixels of thefirst three columns in the second row may be calculated by using thefollowing formula. (49):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{\left( {c + {\sum\limits_{i = 1}^{4}u_{i}}} \right)*{T\left( {m,n} \right)}} + {d*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{u_{1}*{T\left( {{m - 1},{n + 3}} \right)}} + {u_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {u_{3}*{T\left( {{m + 2},n} \right)}} + {u_{4}*{T\left( {m,{n + 6}} \right)}}} \right\rbrack}}\mspace{76mu}{{wherein},\mspace{76mu}{c > 0},{d > 0},{u_{i} > 0},{{c + d} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{4}u_{i}}} \leqslant {0.4.}}}}}\;} & (49)\end{matrix}$

When m=2 and Y<6<n≤Y−3, the actual brightness values of sub-pixels fromthe sixth-last column to the fourth-last column in the second row may becalculated by using the following formula (50):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{6}v_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{v_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {v_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {v_{3}*{T\left( {{m - 1},{n + 3}} \right)}} + {v_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {v_{5}*{T\left( {{m + 2},n} \right)}} + {v_{6}*{T\left( {m,{n - 6}} \right)}}} \right\rbrack}}\mspace{76mu}{{wherein},\mspace{76mu}{a > 0},{b > 0},{v_{i} > 0},{{{2a} + b} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{6}v_{i}}} \leqslant {0.4.}}}}}\;} & (50)\end{matrix}$

When m=2 and n≥Y−3, the actual brightness values of sub-pixels of thelast three columns in the second row may be calculated by using thefollowing formula (51):

$\begin{matrix}{{{{A\left( {m,n} \right)} = {{c*{T\left( {m,{n - 3}} \right)}} + {\left( {d + {\sum\limits_{i = 1}^{4}w_{i}}} \right)*{T\left( {m,n} \right)}} - \left\lbrack {{w_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {w_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {w_{3}*{T\left( {{m + 2},n} \right)}} + {w_{4}*{T\left( {m,{n - 6}} \right)}}} \right\rbrack}}\mspace{76mu}{{wherein},\mspace{76mu}{c > 0},{d > 0},{w_{i} > 0},{{c + d} = {{1\mspace{14mu}{and}\mspace{14mu}{\sum\limits_{i = 1}^{4}w_{i}}} \leqslant {0.4.}}}}}\;} & (51)\end{matrix}$

Formulae used to calculate the actual brightness values of sub-pixels ofrespective columns in the last row are similar to formulae (42) to (46),and the difference therebetween lies in that the theoretical brightnessvalues of the sub-pixels in rows X, X−1, and X−2, instead of thetheoretical brightness values of the sub-pixels in rows 1, 2 and 3, needto be used; formulae used to calculate the actual brightness values ofsub-pixels of respective columns in the second-last row are similar toformulae (47) to (51), and the difference therebetween lies in that thetheoretical brightness values of the sub-pixels in rows X, X−1, X−2 andX−3, instead of the theoretical brightness values of the sub-pixels inrows 1, 2, 3 and 4, need to be used

Similar to the second to fourth implementations, when calculating theactual brightness of the boundary sub-pixels, in addition to thetheoretical brightness value of one sub-pixel per se, the theoreticalbrightness value(s) of sub-pixel(s) adjacent thereto and in the samecolor as said one sub-pixel in the same row (hereinafter referred to assame-row sub-pixel(s) for short) and the theoretical brightness value(s)of sub-pixel(s) in the same color as said one sub-pixel in a differentrow (hereinafter referred to as different-row sub-pixel(s) for short)are also needed. The theoretical brightness values of the abovesub-pixels involving in the calculation should be multiplied bycorrection factors. Here, the correction factor of the one sub-pixelincludes two parts, i.e., a same-row correction factor and adifferent-row correction factor. The same-row correction factor shouldsatisfy the condition that a sum of the same-row correction factor andthe correction factor(s) of the same-row sub-pixel(s) is equal to one,and the different-row correction factor should satisfy the conditionthat the different-row correction factor is equal to a sum of thecorrection factors of the different-row sub-pixels and the different-rowcorrection factor is no larger than 0.4.

In the sixth implementation of the present invention shown in FIG. 10,the pixel array comprises X rows and Y columns of sub-pixels, and instep S2, the actual brightness value of the sub-pixel in row m andcolumn n is calculated according to the following formula (52):

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{6}L_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{L_{1}*{T\left( {{m - 1},{n - 6}} \right)}} + {L_{2}*{T\left( {{m + 1},{n - 6}} \right)}} + {L_{3}*{T\left( {{m - 1},{n + 6}} \right)}} + {L_{4}*{T\left( {{m + 1},{n + 6}} \right)}} + {L_{5}*{T\left( {{m - 2},n} \right)}} + {L_{6}*{T\left( {{m + 2},n} \right)}}} \right\rbrack}} & (52)\end{matrix}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m−1, n−6)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−6, T(m−1, n+6) is the theoretical brightness value of thesub-pixel in row m−1 and column n+6, T(m+1, n−6) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−6, T(m+1, n+6)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+6, T(m−2, n) is the theoretical brightness value of thesub-pixel in row m−2 and column n, T(m+2, n) is the theoreticalbrightness value of the sub-pixel in row m+2 and column n, 2<m≤X−2,6<n≤Y−6, a>0, b>0, L_(i)>0, 2a+b=1, and

${\sum\limits_{i = 1}^{6}\; L_{i}} \leqslant {0.4.}$

FIGS. 11(1) to 11(6) illustrate value matrices of L_(i). It should beunderstood that, negative values in the matrices shown in FIG. 11 meanthat a minus is added before L_(i), and L_(i) is subtracted. Taking FIG.11(1) as an example, a value of L₁ corresponding to the sub-pixel in rowG2 and column S4 is 0.02, a value of L₂ corresponding to the sub-pixelin row G4 and column S4 is 0.02, a value of L₃ corresponding to thesub-pixel in row G2 and column S16 is 0.02, a value of L₄ correspondingto the sub-pixel in row G4 and column S16 is 0.02, a value of L₅corresponding to the sub-pixel in row G1 and column S10 is 0.02, and avalue of L₆ corresponding to the sub-pixel in row G5 and column S10 is0.02. The a Ages of a and b are the same as those in the firstimplementation, for example, in the present implementation, b may have avalue of 0.7, and a may have a value of 0.15.

Formula (52) provided by the sixth implementation of the presentinvention can be used for calculating the actual brightness values ofthe sub-pixels other than the first six columns of sub-pixels, the lastsix columns of sub-pixels, the first two rows of sub-pixels and the lasttwo rows of sub-pixels, in the pixel array. Similarly, the pixel arrayhas far more than two rows and far more than six columns, and therebyinputting theoretical brightness values to the first six columns ofsub-pixels, the last six columns of sub-pixels, the first two rows ofsub-pixels and the last two rows of sub-pixels has little influence onthe entirety of the display panel including the pixel array.

In order to reduce the overall granular sensation of the display panelincluding the pixel array, preferably, when calculating the actualbrightness values of the first six columns of sub-pixels, the last sixcolumns of sub-pixels, the first two rows of sub-pixels and the last tworows of sub-pixels, it is also necessary to use the theoreticalbrightness value(s) of the same-row sub-pixel(s) and the theoreticalbrightness value(s) of the different-row sub-pixel(s). For example, whencalculating the actual brightness values of sub-pixels from the seventhcolumn to the seventh-last column in the first row; in addition to thetheoretical brightness values of two sub-pixels in the same color andleft and right adjacent thereto in the same row, it is also necessary touse the theoretical brightness values of sub-pixels in the same color inthe previous row, the next row, and the row immediately above theprevious row.

The above formula (52) may also be used to calculate the actualbrightness values of the boundary sub-pixels (i.e., the first sixcolumns of sub-pixels, the last six columns of sub-pixels, the first tworows of sub-pixels and the last two rows of sub-pixels). It should beunderstood that, when any one of the calculated row number and columnnumber is less than or equal to zero, the theoretical brightness valuesof sub-pixels in this column are set to be zero, and correspondingly,the correction factors corresponding to the theoretical brightnessvalues are also zero. For example, when calculating the actualbrightness values of sub-pixels from the seventh column to theseventh-last column in the first row(i.e., m=1 and 6<n≤Y−6), m−1=0,n+6≤Y, and therefore, all of T(m−1, n−6), T(m−1, n+6), T(m−1, n−6),T(m−2, n), L₁, L₃, L₄ and L₅ are equal to zero. In this case, theformula used for calculation of the sub-pixels is equivalent to thefollowing formula (52′);

$\begin{matrix}{{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{3}j_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{j_{1}*{T\left( {{m + 1},{n - 6}} \right)}} + {j_{2}*{T\left( {{m + 1},{n + 6}} \right)}} + {j_{3}*{T\left( {{m + 2},n} \right)}}} \right\rbrack}} & \left( 52^{\prime} \right)\end{matrix}$

wherein, j₁ corresponds to l₂, j₂ corresponds to l₄, j₃ corresponds tol₆, and

${\sum\limits_{i = 1}^{3}\; j_{i}} \leqslant {0.4.}$

The actual brightness values of the respective boundary sub-pixels maybe calculated according to the above method. Since there are variouspossible cases, and the possible cases have been enumerated in theforegoing embodiments, a person skilled in the art can easily derive thevalue of the boundary sub-pixels in the present embodiment from thespecific cases in the foregoing embodiments, and therefore, calculationmethods of the actual brightness values of the respective boundarysub-pixels are not enumerated here. It should be understood that, thecalculation methods of the actual brightness values of the respectiveboundary sub-pixels should also belong to the disclosure of the presentinvention.

FIG. 12 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the seventh implementation provided by thepresent invention. In step S2, the actual brightness value of thesub-pixel in row m and column n is calculated according to the followingformula (53):A(m,n)=g*T(m,n−6)+h*T(m,n−3)+i*T(m,n)+h*T(m,n+3)+g*T(m,n+6)  (53)

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m, n−6) isthe theoretical brightness value of the sub-pixel in row in and columnn−6, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, g>0, h>0, i>0, 2g+2h+i=1, and 6<n≤Y−6.

It can be known that, when calculating the actual brightness value ofthe sub-pixel in row m and column n, in addition to theoreticalbrightness value of the sub-pixel in row m and column n, it alsonecessary to use the theoretical brightness values of other foursub-pixels which are in the same color and have the smallest distancefrom the sub-pixel in row m and column n in the same row.

It can be easily understood that, the above formula can be directly usedto calculate the actual brightness values of sub-pixels from the seventhcolumn to the seventh-last column (i.e., the middle sub-pixels) in thepixel array. When the above formula is used to calculate the actualbrightness values of the boundary sub-pixels (i.e., the first sixcolumns of sub-pixels and the last six columns of sub-pixels), namely,if n−6≤0, or n+6>Y, the actual brightness values of this column ofsub-pixels are set to be zero, and the correction factors correspondingto this column of sub-pixels are also set to be zero. For example, whencalculating the actual brightness values of sub-pixels from the fourthcolumn to the sixth column, both T(m,n−6) and g are zero, and the actualbrightness values of sub-pixels from the fourth column to the sixthcolumn may be calculated by using the following formula (54):A(m,n)=h*T(m,n−3)+i*T(m,n)+h*T(m,n+3)+g*T(m,n+6)  (54)

wherein, 2h+i+g=1.

Similarly, the actual brightness values of sub-pixels in the first threecolumns may be calculated by using the following formula (55):A(m,n)=i*T(m,n)+h*T(m,n+3)+g*T(m,n+6)  (55)

wherein, i+h+g=1.

The calculation methods for calculating the actual brightness values ofsub-pixels from the sixth-last column to third-last column and theactual brightness values of sub-pixels in the last three columns aresimilar to the above method. From formulae (53) to (55), a personskilled in the art can easily derive the calculation method forcalculating the actual brightness values of the sub-pixels from thesixth-last column to third-last column and the calculation formula forcalculating the actual brightness values of the sub-pixels in the lastthree columns, which are not repeatedly described here.

In the present implementation, specific values of the respectivecorrection factors are not particularly limited, as long as g>0, h>0,i>0 and 2g+2h+i=1 are satisfied.

FIG. 13 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the eighth implementation provided by thepresent invention. In this implementation, the pixel array comprises Xrows and Y columns of sub-pixels, and in step S2, the actual brightnessvalue of the sub-pixel in row m and column n is calculated according tothe following formula (56):

$\begin{matrix}{{A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{6}M_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - \left\lbrack {{M_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {M_{2}*{T\left( {{m - 1},{n + 3}} \right)}} + {M_{3}*{T\left( {{m + 1},{n - 3}} \right)}} + {M_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {M_{5}*{T\left( {{m - 1},n} \right)}} + {M_{6}*{T\left( {{m + 1},n} \right)}}} \right\rbrack}} & (56)\end{matrix}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m, n−6) isthe theoretical brightness value of the sub-pixel in row m and columnn−6, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, g>0, h>0, i>0, M_(i)≥0, 2g+2h+i=1,

${0 < {\sum\limits_{i = 1}^{6}\; M_{i}} \leqslant 0.4},$6<n≤Y−6 and 1<m<X.

When 6<n≤Y−6 and 1<m<X (sub-pixels from the seventh column toseventh-last column and from the second row to the second-last row), theabove formula may be directly used to calculate the actual brightnessvalues of the respective sub-pixels.

FIG. 14 illustrates value matrices of M_(i). It should be understoodthat, negative values in the matrices shown in FIG. 14 mean that a minusis added before M_(i), and M_(i) times the theoretical brightness valueof the corresponding sub-pixel in formula (56) is subtracted. TakingFIG. 14(1) as an example, a value of M₁ corresponding to the sub-pixelin row G3 and column S7 is 0.02, a value of M₂ corresponding to thesub-pixel in row G3 and column S13 is 0.02, a value of M₃ correspondingto the sub-pixel in row G5 and column S7 is 0.02, a value of M₄corresponding to the sub-pixel in row G5 and column S13 is 0.02, a valueof M₅ corresponding to the sub-pixel in row G3 and column S10 is 0.02,and a value of M₆ corresponding to the sub-pixel in row G5 and columnS10 is 0.02.

When calculating the actual brightness values of the boundary sub-pixels(i.e., sub-pixels in the first row (m=1), the last row (m=X), the firstthree columns (n≤3), from the fourth to sixth columns (3<n<7), from thesixth-last to fourth-last columns (Y−6<n≤Y−3) and the last four columns(n≥Y−3)), if the row number m of any one sub-pixel is equal to orsmaller than zero, or larger than X, or the column number n of any onesub-pixel is larger than Y, the theoretical brightness value of thesub-pixel is set to be zero, and correspondingly, the correction factorcorresponding to the theoretical brightness value is also zero. Forexample, when m=1 and 6<n≤Y−6, all of M₁, T(m−1, n−3), M₂, T(m−1,n+3),M₅, and T(m−1,n) are zero, and then the actual brightness values ofsub-pixels from the seventh column to the seventh-last column in thefirst row may be calculated by using the following formula (57):

$\begin{matrix}{{A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{3}N_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - \left\lbrack {{N_{1}*{T\left( {{m + 1},{n - 3}} \right)}} + {N_{2}*{T\left( {{m + 1},{n + 3}} \right)}} + {N_{3}*{T\left( {{m + 1},n} \right)}}} \right\rbrack}} & (57)\end{matrix}$

wherein, N₁ corresponds to M₃, N₂ corresponds to M₄, N₃ corresponds toM₆, and

$0 < {\sum\limits_{i = 1}^{3}N_{i}} \leqslant {0.4.}$

Similarly, a person skilled in the art can derive formulae forcalculating the other boundary sub-pixels based on the same method,which are not repeatedly described here.

FIG. 15 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the ninth implementation provided by thepresent invention. In this implementation, the pixel array comprises Xrows and Y columns of sub-pixels, and in step S2, the actual brightnessvalue A(m, n) of the sub-pixel in row m and column n is calculatedaccording to the following formula (58):

$\begin{matrix}{{A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{10}N_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - \left\lbrack {{N_{1}*{T\left( {{m - 1},{n - 6}} \right)}} + {N_{2}*{T\left( {{m - 1},{n - 3}} \right)}} + {N_{3}*{T\left( {{m - 1},n} \right)}} + {N_{4}*{T\left( {{m - 1},{n + 3}} \right)}} + {N_{5}*{T\left( {{m - 1},{n + 6}} \right)}} + {N_{6}*{T\left( {{m + 1},{n - 6}} \right)}} + {N_{7}*{T\left( {{m + 1},{n - 3}} \right)}} + {N_{8}*{T\left( {{m + 1},n} \right)}} + {N_{9}*{T\left( {{m + 1},{n + 3}} \right)}} + {N_{10}*{T\left( {{m + 1},{n + 6}} \right)}}} \right\rbrack}} & (58)\end{matrix}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m, and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m, n−6) isthe theoretical brightness value of the sub-pixel in row in and columnn−6, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, T(m−1, n−6) is the theoretical brightness value ofthe sub-pixel in row m−1 and column n−6, T(m−1, n−3) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n−3, T(m−1, n)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n, T(m−1, n+3) is the theoretical brightness value of thesub-pixel in row m−1 and column n+3, T(m−1, n+6) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n+6, T(m+1, n−6)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n−6, T(m+1, n−3) is the theoretical brightness value of thesub-pixel in row m+1 and column n−3, T(m+1, n) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n+3, T(m+1, n+6) is the theoretical brightness value of thesub-pixel in row m+1 and column n+6, g>0, h>0, i>0, N_(i)≥0, 2g+2h+i=1,

${0 < {\sum\limits_{i = 1}^{10}N_{i}} \leqslant 0.4},$6<n≤Y−6 and 1<m<X.

FIGS. 16(1) to 16(4) illustrate several implementations of valuematrices of N_(i). It should be understood that, negative values in thematrices shown in FIG. 16 mean that a minus is added before N_(i), whichis equivalent to the subtraction of N_(i) times the theoreticalbrightness value of the corresponding sub-pixel in formula (58). TakingFIG. 16(1) as an example, a value of N₁ corresponding to the sub-pixelin row G3 and column S4 is 0.02, a value of N₂ corresponding to thesub-pixel in row G3 and column S7 is 0.02, a value of N₃ correspondingto the sub-pixel in row G3 and column S10 is 0.02, a value of N₄corresponding to the sub-pixel in row G3 and column S13 is 0.02, a valueof N₅ corresponding to the sub-pixel in row G3 and column S16 is 0.02, avalue of N₆ corresponding to the sub-pixel in row G5 and column S4 is0.02, a value of N₇ corresponding to the sub-pixel in row G5 and columnS7 is 0.02, a value of N₈ corresponding to the sub-pixel in row G5 andcolumn S10 is 0.02, a value of N₉ corresponding to the sub-pixel in rowG5 and column S13 is 0.02, and a value of N₁₀ corresponding to thesub-pixel in row G5 and column S16 is 0.02.

The above formula (58) can be used to directly calculate the actualbrightness values of the middle sub-pixels. When calculating the actualbrightness of the boundary sub-pixels (i.e., sub-pixels in the first row(m=1), the last row (m=X), the first three columns (n≤3), from thefourth to sixth columns (3<n<7), from the sixth-last to fourth-lastcolumns (Y−6<n<Y−3) and the last four columns (n≥Y−3)), if the rownumber m of any one sub-pixel in the above formula (58) is equal to orsmaller than zero, or larger than X, or the column number ii of any onesub-pixel is larger than Y, the theoretical brightness value of thesub-pixel is set to be zero, and correspondingly, the correction factorcorresponding to the theoretical brightness value is also zero. Forexample, when m=1 and 6<n≤Y−6, all of N₁, T(m−1, n−6), N₂, T(m−1, n−3),N₃, T(m−1, n), N₄, T(m−1,n+3), N₅, and T(m−1,n+6) are zero, and then theactual brightness values of sub-pixels from the seventh column to theseventh-last column in the first row may be calculated by using thefollowing formula (59):

$\begin{matrix}{{A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{5}L_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - \left\lbrack {{L_{1}*{T\left( {{m + 1},{n - 6}} \right)}} + {L_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {L_{3}*{T\left( {{m + 1},n} \right)}} + {L_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {L_{5}*{T\left( {{m + 1},{n + 6}} \right)}}} \right\rbrack}} & (59)\end{matrix}$

wherein, L₁ corresponds to N₆, L₂ corresponds to N₇, L₃ corresponds toN₈, L₄ corresponds to N₉, L₅ corresponds to N₁₀, and

$0 < {\sum\limits_{i = 1}^{5}L_{i}} \leqslant {0.4.}$

A person skilled in the art can derive formulae for calculating theactual brightness values of the other boundary sub-pixels from formulae(58) and (59), which are not repeatedly described here.

FIG. 17 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the tenth implementation provided by thepresent invention. In this implementation, the pixel array comprises Xrows and Y columns of sub-pixels, and in step S2, the actual brightnessvalue A(m, n) of the sub-pixel in row m and column n is calculatedaccording to the following formula (60):

$\begin{matrix}{{A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{12}o_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - \left\lbrack {{o_{1}*{T\left( {{m - 1},{n - 6}} \right)}} + {o_{2}*{T\left( {{m - 1},{n - 3}} \right)}} + {o_{3}*{T\left( {{m - 1},n} \right)}} + {o_{4}*{T\left( {{m - 1},{n + 3}} \right)}} + {o_{5}*{T\left( {{m - 1},{n + 6}} \right)}} + {o_{6}*{T\left( {{m + 1},{n - 6}} \right)}} + {o_{7}*{T\left( {{m + 1},{n - 3}} \right)}} + {o_{8}*{T\left( {{m + 1},n} \right)}} + {o_{9}*{T\left( {{m + 1},{n + 3}} \right)}} + {o_{10}*{T\left( {{m + 1},{n + 6}} \right)}} + {o_{11}*{T\left( {m,{n - 9}} \right)}} + {o_{12}*{T\left( {m,{n + 9}} \right)}}} \right\rbrack}} & (60)\end{matrix}$

wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, T(m, n−3) is the theoretical brightness value of thesub-pixel in row m and column n−3, T(m, n+3) is the theoreticalbrightness value of the sub-pixel in row m and column n+3, T(m, n−6) isthe theoretical brightness value of the sub-pixel in row m and columnn−6, T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, T(m, n+9) is the theoretical brightness value ofthe sub-pixel in row m and column n+9, T(m, n−9) is the theoreticalbrightness value of the sub-pixel in row m and column n−9, T(m−1, n−6)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−6, T(m−1, n−3) is the theoretical brightness value of thesub-pixel in row m−1 and column n−3, T(m−1, n) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n, T(m−1, n+3)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n+3, T(m−1, n+6) is the theoretical brightness value of thesub-pixel in row m−1 and column n+6, T(m+1, n−6) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−6, T(m+1, n−3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n−3, T(m+1, n) is the theoretical brightness value of thesub-pixel in row m+1 and column n, T(m+1, n+3) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n+3, T(m+1, n+6)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+6, g>0, h>0, i>0, o_(i)≥0, 2g+2h+i=1,

${0 < {\sum\limits_{i = 1}^{12}o_{i}} \leqslant 0.4},$9<n≤Y−9 and 1<m<X.

FIGS. 18(1) to 18(4) illustrate several implementations of valuematrices of o_(i). It should be understood that, negative values in thematrices shown in FIG. 18 mean that a minus is added before o_(i), whichis equivalent to and subtraction of o_(i) times the theoreticalbrightness value of the corresponding sub-pixel in formula (60). TakingFIG. 18(1) as an example, a value of o₁ corresponding to the sub-pixelin row G3 and column S4 is 0.02, a value of o₂ corresponding to thesub-pixel in row G3 and column S7 is 0.02, a value of o₃ correspondingto the sub-pixel in row G3 and column S10 is 0.02, a value of o₄corresponding to the sub-pixel in row G3 and column S13 is 0.02, a valueof o₅ corresponding to the sub-pixel in row G3 and column S16 is 0.02, avalue of o₆ corresponding to the sub-pixel in row G5 and column S4 is0.02, a value of o₇ corresponding to the sub-pixel in row G5 and columnS7 is 0.02, a value of o₈ corresponding to the sub-pixel in row G5 andcolumn S10 is 0.02, a value of o₉ corresponding to the sub-pixel in rowG5 and column S13 is 0.02, a value of o₁₀ corresponding to the sub-pixelin row G5 and column S16 is 0.02, a value of o₁₁ corresponding to thesub-pixel in row G4 and column S1 is 0.02, and a value of o₁₂corresponding to the sub-pixel in row G4 and column S19 is 0.02.

The above formula (60) can be used to directly calculate the actualbrightness values of the middle sub-pixels. When calculating the actualbrightness of the boundary sub-pixels (i.e., sub-pixels in the first row(m=1), the last row (m=X), the first three columns (n≤3), from thefourth to sixth columns (3<n<7), from the sixth-last to fourth-lastcolumns (Y−6<n<Y−3) and the last four columns (n≥Y−3)), if the rownumber m of any one sub-pixel in the above formula (60) is equal to orsmaller than zero, or larger than X, or the column number n of any onesub-pixel is larger than Y, the theoretical brightness value of thesub-pixel is set to be zero, and correspondingly; the correction factorcorresponding to the theoretical brightness value is also zero. Forexample, when m=1 and 9<n≤Y−9, all of o₁, T(m−1, n−6), o₂, T(m−1,n−3),o₃, T(m−1,n), o₄, T(m−1,n+3), o₅, and T(m−1,n+6) are zero, and then theactual brightness values of sub-pixels from the tenth column to theninth-last column in the first row may be calculated by using thefollowing formula (61):

$\begin{matrix}{{A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{7}p_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - \left\lbrack {{p_{1}*{T\left( {{m + 1},{n - 6}} \right)}} + {p_{2}*{T\left( {{m + 1},{n - 3}} \right)}} + {p_{3}*{T\left( {{m + 1},n} \right)}} + {p_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {p_{5}*{T\left( {{m + 1},{n + 6}} \right)}} + {p_{6}*{T\left( {m,{n - 9}} \right)}} + {p_{7}*{T\left( {m,{n + 9}} \right)}}} \right\rbrack}} & (61)\end{matrix}$

wherein, p₁ corresponds to o₆, p₂ corresponds to o₇, p₃ corresponds too₈, p₄ corresponds to o₉, p₅ corresponds to o₁₀, p₆ corresponds to o₁₁,p₇ corresponds to o₁₂, and

$0 < {\sum\limits_{i = 1}^{7}p_{i}} \leqslant {0.4.}$

Similarly, a person skilled in the art can derive formulae forcalculating the actual brightness values of the other boundarysub-pixels based on the same method, which are not repeatedly describedhere.

FIG. 19 is a schematic diagram of a distribution of other sub-pixelsthat are in the same color and need to be used when actual brightness ofthe sub-pixel in row G4 and column S10 is calculated by using a drivingmethod of a pixel array in the eleventh implementation provided by thepresent invention. In this implementation, the pixel array comprises Xrows and Y columns of sub-pixels, and in step S2, the actual brightnessvalue A(m, n) of the sub-pixel in row m and column n is calculatedaccording to the following formula (62):

$\begin{matrix}{{A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{12}p_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - \left\lbrack {{p_{1}*{T\left( {m,{n - 9}} \right)}} + {p_{2}*{T\left( {{m + 1},{n - 6}} \right)}} + {p_{3}*{T\left( {{m + 2},{n - 3}} \right)}} + {p_{4}*{T\left( {{m + 3},n} \right)}} + {p_{5}*{T\left( {{m + 2},{n + 3}} \right)}} + {p_{6}*{T\left( {{m + 1},{n + 3}} \right)}} + {p_{7}*{T\left( {m,{n + 9}} \right)}} + {p_{8}*{T\left( {{m - 1},{n + 6}} \right)}} + {p_{9}*{T\left( {{m - 2},{n + 3}} \right)}} + {p_{10}*{T\left( {{m - 3},n} \right)}} + {p_{11}*{T\left( {{m - 2},{n - 3}} \right)}} + {p_{12}*{T\left( {{m - 1},{n - 6}} \right)}}} \right\rbrack}} & (62)\end{matrix}$

wherein, T(m, n−6) is the theoretical brightness value of the sub-pixelin row m and column n−6, T(m, n−3) is the theoretical brightness valueof the sub-pixel in row m and column n−3, T(m, n) is the theoreticalbrightness value of the sub-pixel in row m and column n, T(m, n+3) isthe theoretical brightness value of the sub-pixel in row m and columnn+3. T(m, n+6) is the theoretical brightness value of the sub-pixel inrow m and column n+6, T(m, n−9) is the theoretical brightness value ofthe sub-pixel m and column n−9, T(m+1, n−6) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n−6, T(m+2, n−3)is the theoretical brightness value of the sub-pixel in row m+2 andcolumn n−3, T(m+3, n) is the theoretical brightness value of thesub-pixel in row m+3 and column n, T(m+2, n+3) is the theoreticalbrightness value of the sub-pixel in row m+2 and column n+3, T(m+1, n+3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n+3. T(m, n+9) is the theoretical brightness value of thesub-pixel in row m and column n+9, T(m−1, n+6) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n+6, T(m−2, n+3)is the theoretical brightness value of the sub-pixel in row m−2 andcolumn n+3, T(m−3, n) is the theoretical brightness value of thesub-pixel in row m−3 and column n, T(m−2, n−3) is the theoreticalbrightness value of the sub-pixel in row m−2 and column n−3, T(m−1, n−6)is the theoretical brightness value of the sub-pixel in row m−1 andcolumn n−6, g>0, h>0, i>0, p_(i)≤0, 2g+2h+i=1,

${0 < {\sum\limits_{i = 1}^{12}p_{i}} \leqslant 0.4},$9<n≤Y−9 and 3<m<X−3.

FIGS. 20(1) to 20(4) illustrate several implementations of valuematrices of p_(i). It should be understood that, negative values in thematrices shown in FIG. 20 mean that a minus is added before p_(i), whichis equivalent to the subtraction of p_(i) times the theoreticalbrightness value of the corresponding sub-pixel in formula (61). TakingFIG. 20(1) as an example, a value of p₁ corresponding to the sub-pixelin row G4 and column S1 is 0.02, a value of p₂ corresponding to thesub-pixel in row G5 and column S4 is 0.02, a value of p₃ correspondingto the sub-pixel in row G6 and column S7 is 0.02, a value of p₄corresponding to the sub-pixel in row G7 and column S10 is 0.02, a valueof p₅ corresponding to the sub-pixel in row G6 and column S13 is 0.02, avalue of p₆ corresponding to the sub-pixel in row G5 and column S16 is0.02, a value of p₇ corresponding to the sub-pixel in row G4 and columnS19 is 0.02, a value of p₈ corresponding to the sub-pixel in row G3 andcolumn S16 is 0.02, a value of p₉ corresponding to the sub-pixel in rowG2 and column S13 is 0.02, a value of p₁₀ corresponding to the sub-pixelin row G1 and column S10 is 0.02, a value of p₁₁ corresponding to thesub-pixel in row G2 and column S4 is 0.02, and a value of p₁₂corresponding to the sub-pixel in row G4 and column S1 is 0.02.

When calculating the actual brightness values of the middle sub-pixels(i.e., 9<n≤Y−9, 3<m≤X−3, sub-pixels from the fourth row to thefourth-last row and from the tenth column to the tenth-last column), thecalculation may be performed by directly using the above formula (62).When calculating the actual brightness of the boundary sub-pixels, ifthe row number m of any one sub-pixel in the above formula (62) is equalto or smaller than zero, or larger than X, or the column number n of anyone sub-pixel is larger than Y, the theoretical brightness value of thesub-pixel is set to be zero, and correspondingly, the correction factorcorresponding to the theoretical brightness value is also zero. Forexample, when m=1 and 9<n≤Y−9, all of p₈, T(m−1, n+6), p₉, T(m−2, n+3),p₁₀, T(m−3, n), p₁₁, T(m−2, n−3), p₁₂ and T(m−1, n−6) are zero, and thenthe actual brightness values of sub-pixels from the tenth column to theninth-last column in the first row may be calculated by using thefollowing formula (63):

$\begin{matrix}{{A\left( {m,n} \right)} = {{g*{T\left( {m,{n - 6}} \right)}} + {h*{T\left( {m,{n - 3}} \right)}} + {\left( {i + {\sum\limits_{i = 1}^{7}q_{i}}} \right)*{T\left( {m,n} \right)}} + {h*{T\left( {m,{n + 3}} \right)}} + {g*{T\left( {m,{n + 6}} \right)}} - \left\lbrack {{q_{1}*{T\left( {m,{n - 9}} \right)}} + {q_{2}*{T\left( {{m + 1},{n - 6}} \right)}} + {q_{3}*{T\left( {{m + 2},{n - 3}} \right)}} + {q_{4}*{T\left( {{m + 3},n} \right)}} + {q_{5}*{T\left( {{m + 2},{n + 3}} \right)}} + {q_{6}*{T\left( {{m + 1},{n + 3}} \right)}} + {q_{7}*{T\left( {m,{n + 9}} \right)}}} \right\rbrack}} & (63)\end{matrix}$

wherein, q₁ corresponds to p₁, q₂ corresponds to p₂, q₃ corresponds top₃, q₄ corresponds to p₄, q₅ corresponds to p₅, q₆ corresponds to p₆, q₇corresponds to p₇ and

$0 < {\sum\limits_{i = 1}^{7}q_{i}} \leqslant {0.4.}$

Similarly, a person skilled in the art can derive formulae forcalculating the actual brightness values of the other boundarysub-pixels based on the same method, which are not repeatedly describedhere.

It should be understood that, identical letters appearing in differentimplementations represent different correction factors. Moreover,correction factors in different implementations are independent. Forexample, j_(i) in formula (24) and j_(i) in formula (38) are independentfrom each other, and the value of j_(i) in formula (24) is notinfluenced by j_(i) in formula (38).

As another aspect of the present invention, there is provided a displaypanel, which comprises the pixel array provided by the presentinvention. It can be known from the above description that the displaypanel provided by the present invention has high aperture ratio, simplemanufacture process and low granular sensation, and achieves a displayeffect of a display panel with higher resolution in the same size.

As still another aspect of the present invention, there is provided adisplay device, which comprises the above display panel provided by thepresent invention. The display device may be a mobile phone, a computer,or the like. The display device has both simple manufacture process andlow granular sensation, and achieves a display effect of a display panelwith higher resolution in the same size.

It can be understood that, the above implementations are merelyexemplary implementations used for explaining the principle of thepresent invention, but the present invention is not limited thereto. Forthose skilled in the art, various modifications and improvements may bemade without departing from the spirit and essence of the presentinvention, and these modifications and improvements are also deemed asfalling within the protection range of the present invention.

The invention claimed is:
 1. A driving method of a pixel array, wherein,the pixel array comprises a plurality of pixel units, each of whichcomprises three sub-pixels in different colors, in each pixel unit, anytwo adjacent sub-pixels are combined into a pixel block having a squareshape, a width of each of the sub-pixels is a half of a length of eachof the sub-pixels, and the driving method comprises steps of: S1,calculating theoretical brightness values of an image to be displayed atrespective sub-pixels; S2, calculating actual brightness values of therespective sub-pixels, wherein, the actual brightness value of eachsub-pixel at least comprises a sum of weighted theoretical brightnessvalue of the sub-pixel and weighted theoretical brightness values of oneor more sub-pixels in the same color as the sub-pixel in the same row;and S3, inputting signals to the respective sub-pixels, so that therespective sub-pixels reach the actual brightness values calculated instep S2, wherein, in step S2, the actual brightness value of eachsub-pixel is calculated by subtracting weighted theoretical brightnessvalues of six or more second sub-pixels from the sum of a part of theweighted theoretical brightness value of the sub-pixel to be calculatedand weighted theoretical brightness values of two or more firstsub-pixels, wherein each of the first sub-pixels and the secondsub-pixels has the same color as the sub-pixel to be calculated, thefirst sub-pixels are in same row as the sub-pixel to be calculated, andthe second sub-pixels are in different rows from the sub-pixel to becalculated, and wherein, the pixel array comprises X rows and Y columnsof sub-pixels, X and Y are whole number, and in step S2, the actualbrightness value A(m, n) of the sub-pixel in row m and column n iscalculated according to the following formula:${{A\left( {m,n} \right)} = {{a*{T\left( {m,{n - 3}} \right)}} + {\left( {b + {\sum\limits_{i = 1}^{6}f_{i}}} \right)*{T\left( {m,n} \right)}} + {a*{T\left( {m,{n + 3}} \right)}} - \left\lbrack {{f_{1}*{T\left( {{m - 1},{n - 3}} \right)}} + {f_{2}*{T\left( {{m - 1},{n + 3}} \right)}} + {f_{3}*{T\left( {{m + 1},{n - 3}} \right)}} + {f_{4}*{T\left( {{m + 1},{n + 3}} \right)}} + {f_{5}*{T\left( {{m - 1},n} \right)}} + {f_{6}*{T\left( {{m + 1},n} \right)}}} \right\rbrack}};$wherein, T(m, n) is the theoretical brightness value of the sub-pixel inrow m and column n, m and n are whole number, T(m, n−3) is thetheoretical brightness value of the sub-pixel in row m and column n−3,T(m, n+3) is the theoretical brightness value of the sub-pixel in row mand column n+3, T(m−1, n−3) is the theoretical brightness value of thesub-pixel in row m−1 and column n−3, T(m−1, n+3) is the theoreticalbrightness value of the sub-pixel in row m−1 and column n+3, T(m+1, n−3)is the theoretical brightness value of the sub-pixel in row m+1 andcolumn n−3, T(m+1, n+3) is the theoretical brightness value of thesub-pixel in row m+1 and column n+3, T(m+1, n) is the theoreticalbrightness value of the sub-pixel in row m+1 and column n, T(m−1, n) isthe theoretical brightness value of the sub-pixel in row m−1 and columnn, 1<m<X, X≥3, 3<n≤Y−3, Y≥7, a>0, b>0, f₁>0, f₂>0, f₃>0, f₄>0, f₅>0,f₆>0, 2a+b=1, and ${\sum\limits_{i = 1}^{6}f_{i}} \leq {0.4.}$